Data Analysis

What is the RANGE of this data

• 40

• 95

• 90

• 100

What value is the lower quartile (q1)?

• 66

• 58

• 60

• 64

What is the Upper Quartile?

• 70

• 80

• 93

• 99

A teacher recorded the typing speeds of her students on Monday and Tuesday. The results are shown in the box plots. Which statement is best supported by the information in the box plots?

• A. The median typing speed on Monday was less than the median typing speed on Tuesday.

• B. The maximum typing speed on Monday was greater than the maximum typing speed on Tuesday.

• C. The range of typing speeds on Monday was equal to the range of the typing speeds on Tuesday.

• D. The interquartile range of the typing speeds on Monday was equal to the interquartile range of typing speeds on Tuesday.

Jayce conducted a survey at school to determine the number of songs in each genre that were downloaded by students. The results are shown in the bar graph. Based on the information in the graph indicate whether each inference about the general population of students is valid or invalid.

• Valid inference

• Invalid inference

Jayce conducted a survey at school to determine the number of songs in each genre that were downloaded by students. The results are shown in the bar graph. Based on the information in the graph indicate whether each inference about the general population of students is valid or invalid.

• Valid inference

• Invalid inference

Jayce conducted a survey at school to determine the number of songs in each genre that were downloaded by students. The results are shown in the bar graph. Based on the information in the graph indicate whether each inference about the general population of students is valid or invalid.

• Valid inference

• Invalid inference

Randomly selected students from two different colleges were surveyed about their preferred study times. The results of the survey are shown in the bar graph. Which inference about the preferred study times of all students who attend these two colleges is best supported by this information?

• There are more students who attend College X than students who attend College Y.

• The mode time preference for studying among students who attend College X is the morning.

• More students who attend College Y like to study in the evening than in the morning and afternoon combined.

• The percentage of students who prefer studying in the morning or afternoon is equal for students attending College X and College Y.

Based on the information in the bar graph from a random survey conducted at the mall to determine the number of songs in each genre downloaded by 40 students, which inference about the general population of students is valid?

• Girls like country music more than all other genres combined.

• More girls than boys like rock music.

• Boys like country music more than rock music.

• Boys like rock music more than girls like rap music.

The circle graph below shows the percentages of a family budget used for different monthly expenses. Which statement is supported by the data in the graph?

• The amount of money budgeted for utilities and gasoline combined is less than the amount budgeted for the mortgage.

• The amount of money budgeted for the mortgage is half the amount budgeted for clothes.

• The amount of money budgeted for groceries and clothes combined is twice the amount budgeted for utilities.

• The amount of money budgeted for gasoline and clothes combined is greater than the amount budgeted for groceries.