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

50

Answer

15

Answer

30

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

Watching TV causes increased snack consumption

Answer

Snack consumption causes people to watch more TV

Answer

There is no relationship between TV hours and snacks

Question 3

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

Accepted Answer

85

Answer

72

Answer

82

Answer

78

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

80

Answer

120

Answer

60

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

Book reading causes higher test scores

Answer

Higher test scores cause children to read more

Answer

Test scores and reading are unrelated

Question 6

A histogram shows test scores: 60-70 (5 students), 70-80 (15 students), 80-90 (12 students), 90-100 (8 students). What percent of students scored 80 or above?

Accepted Answer

50%

Answer

40%

Answer

60%

Answer

75%

Question 7

The probability that event A occurs is 0.4 and the probability that event B occurs is 0.3. If A and B are independent events, what is P(A and B)?

Accepted Answer

0.12

Answer

0.70

Answer

0.10

Answer

0.58

Question 8

A line of best fit for data has equation y = -2x + 50. For what value of x does the model predict y = 10?

Accepted Answer

20

Answer

30

Answer

15

Answer

10