TEAS Math: Measurement and Data

Question 1

A patient weighs 68 kilograms. Using the conversion factor 1 kg ≈ 2.2 lbs, approximately how much does the patient weigh in pounds?

Accepted Answer

Approximately 149.6 lbs (68 × 2.2)

Answer

To convert kilograms to pounds, multiply by 2.2 because one kilogram equals approximately 2.2 pounds. 68 × 2.2 = 149.6 lbs.

Question 2

A student's seven quiz scores are: 72, 85, 90, 68, 85, 92, 85. What is the mode of this data set?

Accepted Answer

85

Answer

The mode is the value that appears most frequently. The score 85 appears three times, more than any other value in the set.

Question 3

A data set contains the values 10, 20, 30, 40, and 200. Which measure of central tendency would BEST represent this data without being distorted by the outlier?

Accepted Answer

Median, because it is resistant to the effect of extreme outliers

Answer

The median — the middle value when data is ordered — is not pulled by extreme outliers. Here the median is 30. The mean would be (10+20+30+40+200)/5 = 60, which does not represent the bulk of the data well.

Question 4

A nursing student scores 78, 84, 91, and 87 on four exams. What is her mean score?

Accepted Answer

85

Answer

Mean = sum of all values ÷ number of values = (78 + 84 + 91 + 87) ÷ 4 = 340 ÷ 4 = 85.

Question 5

A rectangular hospital room measures 12 feet in length and 7 feet in width. What is the perimeter of the room?

Accepted Answer

38 feet

Answer

Perimeter of a rectangle = 2 × (length + width) = 2 × (12 + 7) = 2 × 19 = 38 feet. Area would be 12 × 7 = 84 sq ft — a common wrong answer.

TEAS Practice Test

TEAS Practice Test

TEAS Math: Measurement and Data