BMST - Basic Math and Science Data Interpretation and Probability Questions and Answers

Question 1

A quality control inspector records the number of defective units in six consecutive batches as follows: 4, 7, 3, 7, 5, 8. What is the median number of defective units?

Accepted Answer

6

Answer

7

Answer

5.5

Answer

6.5

Question 2

A toolbox contains 12 screws, 8 bolts, and 5 nails. If one item is drawn at random, what is the probability that it is a bolt?

Accepted Answer

8/25

Answer

8/17

Answer

12/25

Answer

1/3

Question 3

A line graph tracks the pressure inside a sealed container over a 6-hour period. The data points are as follows: Hour 0 (100 kPa), Hour 1 (105 kPa), Hour 2 (115 kPa), Hour 3 (130 kPa), Hour 4 (135 kPa). During which one-hour interval did the pressure increase the most?

Accepted Answer

Hour 2 to Hour 3

Answer

Hour 0 to Hour 1

Answer

Hour 3 to Hour 4

Answer

Hour 1 to Hour 2

Question 4

A system has two independent safety alarms. The probability of the first alarm failing is 0.05. The probability of the second alarm failing is 0.02. What is the probability that both alarms will fail simultaneously?

Accepted Answer

0.001

Answer

0.07

Answer

0.03

Answer

0.025

Question 5

A technician recorded the following voltage readings: 12V, 15V, 11V, 15V, 13V, 10V, 15V. Which of the following statements is true for this data set?

Accepted Answer

The mode is the largest value among the three measures.

Answer

The mode is equal to the mean.

Answer

The median is greater than the mode.

Answer

The mean is less than the median.

Question 6

A laboratory uses a simple two-character identification code for its samples. The first character must be one of 4 specific letters (A, B, C, D) and the second character must be a single digit from 1 to 5, inclusive. How many unique identification codes are possible?

Accepted Answer

20

Answer

9

Answer

16

Answer

25

A quality control inspector records the number of defective units in six consecutive batches as follows: 4, 7, 3, 7, 5, 8.What is the median number of defective units?

A quality control inspector records the number of defective units in six consecutive batches as follows: 4, 7, 3, 7, 5, 8.
What is the median number of defective units?