Algebra 1B unit 5

Study the following data set. What is the standard division for the data set?

16.1

Study the data set. {23,21,21,25,27,16,55,3,11,38}

22

Which number could be considered an outlier in the data set {3,5,6,8,24}?

24

Studies a given data set. What is the standard division of the data?

29.7

Using the data:2,2,3,3,3,4,5,6,6,19} what is Q1 and Q3?

3,6

Unit session question one: using the data- {2,2,3,3,3,4,5,6,6,10} what is the median?

3.5

Exam the following two data displays. Which answer shows the correct names for the two given data displays?

A:histogram B:scatter plot

Examine the following box plots. Which statement about the box plots are true? Select all that apply.

Box plot B has a greater interquartile range. The median of box plot B is less than the median of box plot A.

Use data set a, B, and C to answer the question that follows. Which answer shows the standard divisions of the data sets in order from greatest to least?

C,B,A

Hey Siri asked for 109th grader students how many times a week they exercise. Of the 287 female surveys 159 said they exercise fewer than three times per week. Out of 189 students to exercise three more times per week, 61 were males. The following frequency table for this data is partially complete choose two answers to complete the table. Choose one answer for a and B and choose one answer for B and C.

C: 128 D: 211 A: 52 B: 113

Use the following information to answer the question. A particular survey resulted in the following data. Of the males surveyed, nine were children and 16 were adults. Of the female surveyed, 11 were children and 12 adults. Which two way frequency table correctly represents the data?

Children adults total Male. 9 16 25 Female 11 12 23 Total. 20 28 48

The ages of students in rolled in two math classes at the local community college, clase in class B, are listed in order below. Determine which of the following statements is true about class B.

Class B has a smaller median and the same interquartile range.

Which of the following best describes the relationship between the number of miles A person runs in the number of calories he/she burns?

Correlation and causation

Use the following information and the table to answer the question. Which of the following statements correctly interpret data in the table? Select all answers that are correct.

If a student some the survey plays an instrument, the student is more likely to have a GPA over 3.0 and the student who does not play an instrument. It is somewhat more likely that a student from the survey has a GPA under 3.0 and does not play an instrument and has a GPA over 3.0 and does not play an instrument

Josh is examining a set of data, and the standard deviation is 5.4. What will happen to the standard division of Josh includes the new data value in the set?

It will increase

For a summer math project, Nadia and Kelsie collect data on the number of visitors at Parks before noon over a seven week period. Which statements about the data are true? Select all that apply.

Kelsey's that I have a greater interquartile range. Kelsey's data have A lower median value.

Study the following box plot. Which five numbers summary was used to create the box plot?

Minimum:2, 1st quartile:22, median: 32, 3rd quartile:38, maximum: 42

Does the sample represent a population? Why or why not? Select the option that correctly answers those questions.

No because people in the bookstores are interested in purchasing books, so they do not represent all shoppers in the mall.

Exam the following data set. {3,0,5,3,4,5,6,6,5} Is there an outlier in the data? If so, which one?

No, there is no outlier

Use the following information and the table to answer the question. Which answer choice correctly interprets the value in the "against" column?

Of the 55 people against the bill, 36 of them were Republicans, four of them were Democrats, and 15 of them were independents.

Examine the following dark plot. Which answer correctly describes the shape of the data?

Right-skewed

If a data plat has most of the data on the left side of the graph, and a tail to the right, what do we call it?

Right-skewed

Oscar is comparing length and width of hamsters to see if there is any relationship between the two. Which answer shows the best data display for this type of information?

Scatter plot

What would produce a sample that would be representative of a schools seventh grade population?

Survey every fifth seventh grader entering the school at the beginning of the day.

Local local animal shelter wants to estimate the number of people in Crystal Lake city who owned pets. Which methods of collecting data will get the animal shelter a random sample that represents the entire population of the city?

Survey every third person at the local grocery store. Survey all thousands in four of the seven neighborhoods in the Crystal Lake city.

A company wants to provide better customer service to all of its 2000 clients. The company needs to create a sample of clients to survey. How would the company select example of clients? Select two that apply.

The company should have A computer randomly generate a list of 200 clients to survey. The company should survey the 5th client that makes an appointment.

Examine the data in the following histograms. Which statements about the data are true? Select all that apply

The data and histogram 2 are skewed left. The data in histogram 1 are more symmetrical. The data and histogram 2 have a higher median value.

A frozen yogurt shop has two different locations. The owners record the ages of customers at both locations on a Friday afternoon. The results are in the following data displays. Which statements about the data are true? Select all that apply.

The data for the north store are skewed right, which indicates the mean age of its customers is greater than the median age. The data for the south store are skewed left, which indicates the mean age of its customers is less than the median age.

Are use the following data sets to answer the question. Which statement about the data sets is true?

The data in set A are skewed to the left, because the moon is less than the median. The data in set B are symmetrical, because the mean is equal to the median

Which situation is most likely to show a correlation but not causation?

The number of pets owned and the age of the owner.

Which situation most likely describes correlation and causation?

The number of pets owned in the amount of money spent at pet stores.

Which answer correctly shows how to find the mean of the data set?

The one that equals 9 and is divided by 5

Exam the given data set. {1,28,2,24,13,15,30,8,9,25,5,27} which box plot represents the data set?

The one where the first dog lines up with one the first part of the box lines up with six the middle part of the box lines up with 14 the last part of the box lines up with 26 and the dark lines up with 30

Match each box plot to the data set it represents.

{12, 16, 4, 20, 8, 6, 8}- The one with the middle line that lines up to 8 {12, 14, 16, 20, 4, 8, 10}- The one where the middle line lines up with 12 {20, 18, 8, 18, 10, 8, 4}- The one where is the middle line lines up with 10

Match each data set with its standard deviation. Round your answer to the nearest 10th if necessary.

{74,74,76,77,77,78,82}= 2.5 {74,76,77,77,78,82,130}= 18.6 {8,74,76,77,77,78,82}= 24.4

Lesson 22

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Lesson 23

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Lesson 24

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Lesson 25

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What is the standard division of the data set {2,1,1,2,2,3}?

0.6

Use the following information and table to answer the question. Rita kept track of the types of diplomas that were ordered annually at a small online university. She created the following to her frequency table to display her data. Of the diplomas that were awarded in 2018, about what percentage were accounting majors?

51%

Examine the following data set. {3,1,10,7,8,10} what is the mean of the data?

6.5

Use the box plot to answer the question. What is the interquartile range of the data set represented by the box plot?

7

Study the following data set. What is the interquartile range of the data set.

8

What is the difference, if any, between a correlation and a causation statement?

A correlation statement implies that a relationship exist between two variables. A causation statement implies that the value of one variable is a reason for the value of the other.

Examine the data displays shown. Which answer provides the correct names of the types of data displays shown?

A: scatter plot B: dot plot

Who's the following information and table to answer the question. It's like two answers that correctly fill in the blanks in the previous sentence to make it a true statement. Slept one answer for blank A, and select one answer for blank B.

B: 0.18 A:0.82

Use the following data sets to answer the question. Which statement about the shape of the data is true?

Both sets have the same median, but set B has a larger mean

Skyler collected data on the number of questions asked by students during math class. She would like to display all values in the data set, because there are not many values, and they are close in value. Which type of data display should Skyler use?

Dot plot

Use the scenario to answer the question. At which step did Brian make a mistake, if he had made one?

He did not make a mistake

Elle and Layla are collecting data on student use of the school library. Which statement is true?

Layla's data set has a greater spread then Elle's data set

Examine the following dot plot. Which answer correctly describes the shape of the data in the dot plot?

Left-skewed

Examine the following histogram. Which answer correctly describes the shape of the data?

Left-skewed

Exam the following data set. Which answer shows the five number summary that could be used to create a box plot for this data?

Minimum 2, 1st quartile 9, median 15, 3rd quartile 19, maximum 20

Unit 5 session recording

Password: week5

Consider the following histogram. Which answer correctly describes the shape of the data in the Instagram?

Symmetrical

Study the following data distribution. Which answer correctly describes the shape of the data?

Symmetrical

Study the phone box plot. Which answer correctly describes the shape of the data?

Symmetrical

Exam the following data set {55,56,54,58,53,52,57}. Which statement best describes the data?

The IQR is 4 and there are no outliers

Examine the following box plots. Which statements about the box plots are true? Select all that apply

The IQR of box plot A is slightly greater than the IQR of box plot B. The data in box plot B are more symmetrical than the data in box plot A. Box plot A has a grade or median.

Daniel recorded the ages of students in two of his classes below. Which statement about class two is true.

The mean of class II is larger than class I, and the median is the same

Two classes collected data about the number of pets students have. The following data displays represent the data from class one in class too. Which statements about the data are true? Select all that apply.

The median for class 1 is less than the median for class 2 The data for both classes are skewed right.

Examine the following dot plots. Which statements about the dot plots are true? Select all that apply.

The median of the data in dot plot B are skewed right, and the data in dot plot dot plot A are symmetrical. The data in dot plot A have a lesser range that the data in dot plot B. The median of the data in dot plot B is less than the median of the data in dot plot A.

Examine the following data set. Which piece of data from the data center is an outlier, if there is one?

There are no outliers

Wilson reads an article that says students who eat blueberries the morning of a test tend to have a higher test score. The article claims that eating blueberries causes in an improvement in test scores. Which statement is most likely correct about the relationship between eating blueberries and improved test scores?

There is a correlation, but there is no casual relationship.

Examine the following dot plots. Which statement about the dot plots are true? Select all that apply.

To mean of dot plot B is 4.6. The mean of dot plot A is 2.4. The standard deviation for dot plot B is greater than the standard deviation for dot plot A.

Use the following information to answer the question. In a survey, 21 women said they prefer television, 10 women said they prefer movies, six men said they prefer television and 28 men said they prefer movies. Did Yanira wanna make a mistake? If so what was the mistake?

Yes. She found the joint related frequencies incorrectly. She should have divided each of the joint frequency by the total number of people surveyed.

Checkpoint 23

100%

Examine the following dot plot. What is the interquartile range of the data displayed in the box plot?

11

Timothy gather data on student ages and shoe sizes to see if there is a relationship between the two. Which data display should Timothy use?

Scatter plot

Use the following data sets to answer the question. Which statements about the data sets her true? Select all that apply.

Set B has an outlier, and set a does not. The interquartile range of set A is equal to the interquartile range of set B. The data in set B is more varied than the data and set A, because the standard deviation of set B is greater than the standard deviation of set A.

Examine the following data set. Which answers best describes the shape of the data?

Skewed right

Use the following data set to answer the question. Which statement about the data set are true? Select all that apply

The interquartile range is 8. There are no outliers. The standard deviation is approximately 3.7.

A cell phone company survey customers on two different phone plants about their number of text messages they send every day. The results follow. Which statement about the data could be true? Select all that apply.

The interquartile range of Plan B is greater than the interquartile range of plan A. The median of plan A is less than the median of plan B.

He given dad is it has a symmetrical shape. Which statement is true about the data set?

The mean is equal to the median

What is true about the shape of data when the mean and median are equal?

The shape of the data is symmetrical

Two similar data sets are being compared. The standard division of set A is 4.8. The standard division of set B is 6.5. Which statement about the data sets is true?

The spread of the data inside set B is greater than the spread of the data and set A,

Which answer correctly describes the change in the standard division for the data set {3,4,6,7,8,20} when the outlier is not included in the calculation?

The standard deviation decreases from 5.63 to 1.85, which means the graph of the values is less spread out without the outlier.

Study the data in the following dot plots. Which statement about the data sets are true? Select all that apply

The standard deviation of set A is less than the standard deviation of set B. The mean of set B is greater than the meaning of set A.