Bluebook SAT Test Problem Solving and Data Analysis 2

Question 1

A box plot for a data set shows minimum=10, Q1=20, median=30, Q3=45, maximum=60. What is the interquartile range (IQR)?

Accepted Answer

25

Answer

IQR = Q3 - Q1 = 45 - 20 = 25.

Question 2

A graph shows a strong positive correlation between hours of TV watched and snack consumption. What conclusion is best supported?

Accepted Answer

As TV hours increase, snack consumption tends to increase

Answer

Correlation shows a relationship, not causation. The correct interpretation states the association without claiming cause.

Question 3

A sample of 5 quiz scores is: 72, 85, 90, 78, 85. What is the mode?

Accepted Answer

85

Answer

The mode is the most frequently occurring value. 85 appears twice; all others appear once.

Question 4

A pie chart shows: Science 30%, Math 25%, English 20%, History 15%, Arts 10%. In a school of 400 students, how many study Math?

Accepted Answer

100

Answer

Math students = 25% × 400 = 0.25 × 400 = 100.

Question 5

A study shows that children who read more books have higher test scores. Which statement is most accurate?

Accepted Answer

Book reading is correlated with higher test scores

Answer

Without a controlled experiment, we can only conclude correlation exists, not causation.

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