CIS Test Reviews

True or False Tables and graphs are both vehicles for presenting information visually and the role of visual perception in reading and interpreting the information presented in both the cases is the same.

False

True or False if we have two sets, A and B, a collection of all members in both sets is known as A intersection B

False

Which of the following is correct about the role of Data Visualization (DV) tools in business analytics frameworks? a. DV is front-end tool in analytics framework and its value creation depends on high quality data supply b. Modern DV application requires database skills c. DV is back-end tool in analytics framework and its value creation depends on quality of IT infrastructure d. Modern DV application requires programming skills

a. DV is front-end tool in analytics framework and its value creation depends on high quality data supply

The _____________ color system present a color by mixing the 3 basic colors a. RGB b. HSL c. TCL d. RMB

a. RGB

Which one of the following is correct about table and graph design? a. making choice between table and graph to visualize your data should depends on the purpose of your presentation b. showing data by graph is always better than in table because "one picture worth's 1000 words" c. showing data in tables is boring and tedious because the audience doesn't enjoy reading arrays of numbers d. if careful designed, graph is always better than table

a. making choice between table and graph to visualize your data should depends on the purpose of your presentation

Which of the following is not a component of a box plot? a. mean b. median c. min d. max

a. mean

In business presentations, the __________ and _______ are commonly used to describe the center of a set of numbers a. median and mean b. covariance and correlation c. spread and standard deviation d. mode and midragne

a. median and mean

Types of data that are commonly used in business analysis/communications are ______ a. quantitive and categorical b. numerical and ordinal c. categorical and interval d. quantitative and nomianl

a. quantitive and categorial

Preattentive visual processing is a. rapid and subconscious b. rapid and conscious c. slow and conscious d. slow and subconscious

a. rapid and subconscious

The _____________ format of ratio measures is preferred in business presentations a. rate and percentage b. percentage and fractions c. rate and fractions d. percentage and general descriptions

a. rate and percentage

_____________ is good for identifying correlations between 2 quantitive variables a. scatter plot b. line chart c. hue d. color intensity

a. scatter plot

_________ is a physical process that occurs when a physical stimulus is detected by the eyes a. sensation b. perception c. cognition d. interpretation

a. sensation

Aggregation is also called ___________ a. summarization b. standardizing c. integration d. normalization

a. summarization

To present an agenda of a conference, ___________ is a better tool a. table b. graph c. scatter plot d. all above

a. table

___________ make it easy to look up individual values a. tables b. graphs c. audios d. texts

a. tables

Why is it necessary to check the scatter plot before calculate a linear correlation coefficient between 2 quantitative variables? a. to make sure the 2 quantities are generally linearly correlated and scatter plot does NOT show an obvious non-linear pattern b. because your teacher asked you to do so c. because it is cool to visualize a correlation d. all above

a. to make sure the 2 quantities are generally linearly correlated and scatter plot does NOT show an obvious non-linear pattern

One way to help highlight the primary data component is to remove the unnecessary visual components. to exam that a visual component is necessary, an analyst can ask the question " ___________" a. would the data suffer any loss of meaning if the component were removed? b. would the data show enhanced meanings if the component were removed? c. would the chart be highlighted if the component were removed? d. would the chart be de-graded if the component were removed?

a. would the data suffer any loss of meaning if the component were removed?

The process of seeing is done buy eyes quickly jumping and fixating. It takes about _____________ to jump to the next point of fixation a. 4 seconds b. 1/4 second c. 1 second d. 1/2 second

b. 1/4 second

Only _____________ chunks of information can be stored in working memory a. 20 to 30 b. 3 or 4 c. 8 to 10 d. 1 or 2

b. 3 or 4

Which of the following is correct about data aggregation using Tableau and Excel? a. tableau does not support data aggregation b. Excel Pivot Table tool can help create data aggregation c. Excel cannot aggregate data d. Tableau needs external tools to aggregate data

b. Excel Pivot Table tool can help create data aggregation

Which of the following is NOT a good way to emphasize the data-ink? a. increase the width b. add 8-10 bright colors to the chart c. change orientation d. use enclosure on a certain part of the visualization

b. add 8-10 bright colors to the chart

___________ is a common choice for displaying distributions over time a. fishbone diagram b. box-plot c. scatter plot d. XY-chart

b. box-plot

The goal of data visualization in business is ____________ a. impressing audience by showing advanced of graphical design b. effective communication c. attracting audience d. showing more numbers in one place

b. effective communication

Median is a special case of percentile. If Same got a score that is higher than the median score in a test, then Sam's score is ___________ a. higher than 90% of all test takers' score b. higher than 50% of all test takers' score c. lower than 50% of all test takers' score d. lower than 90% of all test takers' score

b. higher than 50% of all test takers' score

Fill pattern is not recommended to visualize categorical data because a. it does not utilize colors b. it causes visual uncomfortableness to many people c. it is not useful in showing multiple categories d. it could become hard to distinguish

b. it causes visual uncomfortableness to many people

The main disadvantage of using median of a dataset is a. it is sensitive to extreme values b. it is sensitive to sample size c. it is not applicable for skewed distribution d. it cannot be used for the dataset with outliers

b. it is sensitive to sample size

It is better to use _____________ colors to distinguish visual objects a. non-saturated b. medium shades c. fully saturated d. very light shades

b. medium shades

The tableau software can easily generate map chart when ______________ a. the software is installed with the "Map" plugin b. the data set contains geographical variables such as state name, zip code, or longitude/latitude values c. the software is upgraded to the version 11 or later d. the analyst decide to put any quantitative data on a map

b. the data set contains geographical variables such as state name, zip code, or longitude/latitude values

A bad practice of using table or graph is to put too many details in one place ____________ is a commonly known reason for this practice? a. the presenter wants to mislead the audience towards his/her preferred conclusion b. the presenter wants to show the audience his/her hard work c. the presenter wants to overwhelm the audience with details d. the presenter wants to cover mistakes he/she made

b. the presenter wants to show the audience his/her hard work

Which of the following is not a good way to assign importance by using of quantitatively perceived visual attributes in a graph? a. thicker graph lines or data lines b. thicker grid lines c. brighter color for highlighting d. 2-d positioning at top left

b. thicker grid lines

To use Tableau to analyze data, the raw data must be in the ____________ form a. bidirectional b. unidirectional c. all-directional d. non-directional

b. unidirectional

To help readers effectively distinguish visual objects, the best practice is to use no more than ________ distinct features such as colors, orientations, and sizes. a. 3 b. 8 c. 4 d. 10

c. 4

What is bidirectional table? a. values in rows are sorted to both directions (ascending and descending) b. quantitative items are laid out in both directions (row and column) c. categorical items are laid out in both directions (row and column) d. values in columns are sorted to both directions (ascending and descending)

c. categorical items are laid out in both directions (row and column)

If 2 quantities are significantly linearly correlated, then a. value increase of the first variable are corresponded with changes of the 2nd b. changes of the first variable cause changes of the 2nd c. changes of the first variable are corresponded with changes of the 2nd d. value decrease of the first variable are corresponded with changes of the 2nd

c. changes of the first variable are corresponded with changes of the 2nd

Mr. Smith is the department head of sales in Amass Corp. He needs to understand if there is any seasonal pattern in the total sales in the company. He has data from the last 3 years. Which of the formats of information representation will be best for his purpose? a. table b. scatter plot c. graph d. neither table nor graph

c. graph

When an analyst want to quickly overview a large dataset or look for patterns, ________ is a better technique a. audio b. text c. graph d. table

c. graph

A well-known chart to show distribution of a quantitive variable is _________ a. scatter plot b. XY-chart c. histogram d. fishbone diagram

c. histogram

The _____________ memory processes visual information extremely fast and without your attention. a. short-term b. long-term c. iconic d. working

c. iconic

Pie charts ___________ a. is good for showing distribution variables b. is good for showing categorical variables c. is NOT efficient in comparing values d. is efficient in comparing values

c. is NOT efficient in comparing values

One important feature of working memory is ________ a. it is permanent b. it is super rapid c. it is temporary d. it is super slow

c. it is temporary

To choose an appropriate type of visualization technique, an analyst should a. have database skills and know advanced visual tools such as Tableau b. know the number of the audience and know as many visualization techniques as possible c. know the background and information needs of audience and know the effectiveness of visualization techniques d. know MS Excel visual tools and Tableau

c. know the background and information needs of audience and know the effectiveness of visualization techniques

To Summarize the salaries of each department in the company to show their comparative impact in expenses, _______ would work better a. median b. mode c. mean d. midrange

c. mean

A rule of thumb about using the most appropriate metric for summarization states- ''when the actual value of each number is relevant, use __________; when the ranking position is relevant, use __________' a. median; mean b. median; midrange c. mean; median d. mean; standard deviation

c. mean; median

In statistics, _________ is the number assigned to the concept of the significance. a. R-squared b. s-squared c. p-value d. k-value

c. p-value

A ______________ can display correlations a. data map b. scatter plot c. histogram d. tree diagram

c. scatter plot

Mr. Smith is the department head of sales in Amass Corp. He needs to compare individual values of sales (in US dollars) made by various sales representatives to each another. Which of the formats of information representation will be best for his purpose? a. neither table nor graph b. scatter plot c. table d. graph

c. table

To make an effective data-related presentation, the presenter must make sure _________________ a. the data comes from multiple sources and each source is trustworthy b. the presentation is full of interactive activities c. the data is relevant to audience and the audience can understand the meanings of the data d. providing high contrasting colors and shapes

c. the data is relevant to audience and the audience can understand the meanings of the data

What does a value of 0 for linear correlation between two variables x and y indicate? a. the two variables have a positive correlation b. the two variables have a negative correlation c. the two variables are not linearly correlated or have no linear relationship d. value 0 is not possible for linear correlation coefficient

c. the two variables are not linearly correlated or have no linear relationship

Adding labels to only to the bottom 3 product categories by profit is an example of ________ a. organizing information b. adjusting information c. using text to highlight important information d. reducing data ink

c. using text to highlight important information

The main reason that Median is preferred over Mean in summarizing US household income is that a. household income is monetary quantity which is better summarized by median b. the Median of household income does not consider number of households c. the mean of household income does not consider number of households d. US household income variable is very skewed. Compared with Median, arithmetic mean does not fairly represent a typical household income

d. US household income variable is very skewed. Compared with Median, arithmetic mean does not fairly represent a typical household income

Data summarization ____________ a. is commonly used in business presentations b. is to reduce the amount of data to present, which is typically done by using a few numbers to describe the key features of a dataset c. can be as simple as summing and counting d. all above

d. all above

The eloquence in simplicity is a general rule in business communications. Which of the following is correct? a. unnecessary pictures and colors on a business presentation could distract/mislead your audience. b. unnecessary pictures and colors on a business presentation could make it unprofessional c. unnecessary pictures and colors on a business presentation could emotional move the audience in an unexpected way d. all above

d. all above

The linear correlation coefficient can tell a. is the correlation strong or weak b. is the correlation positive or negative c. whether a correlation exist d. all above

d. all above

Why does data analytics-based on decision making have advantages over experience based in modern business operations? a. modern business competition environment is increasingly dynamic, expereiences can be easily out of date b. experiences and personal judgement are subject to cognitive bias c. big data is largely available d. all above

d. all above

Bad designs of graphical presentations can lead to a. misunderstanding b. ineffective communication c. impression of absent-minded presenter d. all of the above

d. all of the above

Nominal comparison can better visualized with ____________ a. box plot b. pie chart c. line chart d. bar chart

d. bar chart

Which of the following a deviation relationship? a. finding the top 5 best sales representatives b. finding patterns of stock price changes over a month c. comparing GDP among 5 countries d. comparing actual sales with forecast sales

d. comparing actual sales with forecast sales

Standard deviation (SD) is a commonly used measure of variation. The SD values of dataset A and B are 11 and 22, then _____________ a. data points in A are more spread out from the mean value b. data points in B have a bigger mean value c. data points in A have a bigger mean value d. data points in B are more spread out from the mean value

d. data points in B are more spread out from the mean value

Ink presenting information compared to the total amount of ink used is called __________ a. ink-data ratio b. data-ink value c. ink-data value d. data-ink ratio

d. data-ink ratio

____________ are similar to reference lines in that they call out a value on the axis, but are tied to the mark in the view a. p-value b. box plot c. reference line d. drop lines

d. drop lines

Non-linear relationship is very common in our world. Which one of the following is a good example of non-linear relationship? a. traveling speed to traveling distance during a certain time period b. height in relation to weight for high school students. c. price in relation to demand d. employees' tenure in relation to productivity could be that in the early time of tenure the employee's productivity increases along tenure but after a specific time, the productivity decreases

d. employees' tenure in relation to productivity could be that in the early time of tenure the employee's productivity increases along tenure but after a specific time, the productivity decreases

In the center of the retina is a small area called the _________ by which our eyes can fixate on a particular spot and remain there a. lens b. pupil c. iris d. fovea

d. fovea

The _______________ memory holds our knowledge and ability to recognize images and detect meaningful patterns from a visual presentation a. iconic b. doing c. working d. long-term

d. long-term

Questions such as "how do we increase sales, or how do we decrease expenses or how do we lower the deficit rate?" can be answer when we __________ a. move from data to information b. move from information to knowledge c. move from information to intelligence d. move from knowledge to strategy

d. move from knowledge to strategy

If precise values are expected by your audience, ______________ is a better tool a. video b. text c. graph d. table

d. table

Hovering over the trend line brings up a tooltip with the trend line equation, __________ a. the t-value and R-squared b. the z-value, and R-squared c. the correlation coefficient d. the p-value, and R-squared

d. the p-value, and R-squared

When _____________ dot plot is a better choice than line chart in showing time series data a. there are more than 100 time points b. the trend does not show a straight line c. there are more than 2 linear models appearing d. there are good amount of missing data between 2 time points

d. there are good amount of missing data between 2 time points

True or False an example of reducing unnecessary data-ink is removing unnecessary grid lines

false

True or False interactive filters are a great way to let end users interact with the visualization but excessive numbers of interactive Filters may slow down the perfect dashboard or workbook

true

True or false dragging a field to the filter shelf is an easy way to filter

true

true or false in any graph or table, the main focus should be on effective communication of business information rather than artistic design

true

true or false Sets can be created by the user in Tableau Desktop from specific data in the view or created via a calculation

true