Mathematics 700 Fundamentals - Unit 7: Data Analysis Test

The following circle graph represents how the Townsends spend their monthly income. If their total monthly budget is $3,000, how much do they spend per month on food?

$600

A histogram is being made for the following list of data. 78, 92, 98, 87, 86, 72, 92, 81, 86, 92 If the length of each interval is going to be 6, what will be the frequency of the first interval?

1

A set of data has been organized using the stem-and-leaf plot below. What is the mode of the data?

109

Miranda has earned scores of 20, 22, 18, and 24 on her last four math quizzes. What score will she need to earn on the fifth quiz in order to have a mean score of 20?

16

The following circle graph represents how the Townsends spend their monthly income. What is the central angle measure of the section that represents "Savings"?

18°

What is the interquartile range of the set of data represented by the following box-and-whisker plot?

2.5

The seventh and eighth graders at East Middle School are having a competition to see whose class can sell the most candy bars over the course of five days. The following bar graph shows each of their sales for the week. How many candy bars did the eighth graders sell over the course of the five days?

425

A histogram is being made for the following list of data. 78, 92, 98, 87, 86, 72, 92, 81, 86, 92 If the length of each interval is going to be 6, how many bars will there be on the histogram?

5

What is the lowest value in the set of data represented by the following box-and-whisker plot?

6

Seven of ten students polled say that they prefer to practice for a team sport after school than before school. Based on this sample, how many students would you expect out of a population of 120 to prefer to practice after school?

84

What is the median of the following set of data? 78, 92, 98, 87, 86, 72, 92, 81, 86, 92

86.5

The following scatter plot represents the scores of thirteen students on a geography test compared to the number of hours that each student studied for the test. Use the line of best fit to predict the score of a student who studied three hours for the test.

95

At a financial conference, the 750 attendees were given the choice of turkey, ham, both, or neither on the sandwich in their sack lunch. Eighty-five of the attendees chose neither and 200 chose both. If a total of 400 people had ham on their sandwiches, the following Venn diagram could be used to find the number of people that only had turkey.

False

Ben is taking a typing class, and the following line graph represents the number of words per minute he was able to type each week. According to the graph, Ben was able to type ten more words in the fourth week than in the second week.

False

The mean of a set is not affected by outliers.

False

In the following set, the mode is the most effective measure of central tendency if you want to emphasize how small the values are. 32, 21, 68, 21

True

The following pictograph shows the attendance at each seminar at a financial conference. The graph shows that 25 more people attended the "Good Spending Habits" seminar than the "Making a Budget" seminar.

True

The following scatter plot demonstrates that there is no correlation between the two quantities.

True

Which of the following represents a random sample if the population being sampled is students participating in athletics at a local middle school?

choosing ten students from a box that contains the names of the entire group

All of the following types of graphs are used to represent numerical data except a _____.

circle graph