BMST Data Interpretation and Probability 5

Question 1

A bar graph compares sales in Q1 and Q2. Q1=$45,000 and Q2=$54,000. What is the percent increase from Q1 to Q2?

Accepted Answer

20%

Answer

15%

Answer

25%

Answer

18%

Question 2

A weather report states a 30% chance of rain on Saturday and 40% chance on Sunday. Assuming independence, what is the probability it rains on both days?

Accepted Answer

12%

Answer

70%

Answer

58%

Answer

35%

Question 3

Data: 14, 22, 18, 35, 20. After removing the outlier 35, what happens to the mean?

Accepted Answer

It decreases

Answer

It increases

Answer

It stays the same

Answer

It becomes the median

Question 4

A Venn diagram shows 20 students like soccer, 15 like basketball, and 8 like both. How many students like only soccer?

Accepted Answer

12

Answer

8

Answer

20

Answer

15

Question 5

A quality control chart shows 2% of items are defective on average. In a batch of 500 items, how many are expected to be defective?

Accepted Answer

10

Answer

5

Answer

20

Answer

15

Question 6

A cumulative frequency graph shows 80 students scored below 75 out of 120 total. What percentile is a score of 75?

Accepted Answer

66.7th

Answer

75th

Answer

80th

Answer

60th

Question 7

A table shows: P(A) = 0.6, P(B|A) = 0.5. What is P(A and B)?

Accepted Answer

0.3

Answer

0.5

Answer

0.6

Answer

1.1