1. A nursing supervisor is reviewing the hourly shift differentials for a group of eight registered nurses. The data set is as follows: \n\n$12.50, $15.75, $11.00, $21.50, $9.00, $14.25, $18.00, $20.25\n\nWhat is the range of the hourly shift differentials for this group of nurses?
- $5.50/hour
- $18.00/hour
- $12.50/hour
- $14.25/hour
Answer: C. $12.50/hour
Learn how to calculate the statistical range by subtracting the minimum value from the maximum value in a data set.
2. Which of the following is the result of three-eighths plus one-eighth minus one-fourth?
- 0.375
- 0.625
- 0.750
- 0.125
Answer: A. 0.375
To solve, add the first two fractions and subtract the third using a common denominator, then convert the remaining fraction to a decimal.
3. Which of the following sets of numbers is ordered correctly from least to greatest?
- 0.4, 3/7, 0.44, 4/9
- 3/7, 0.4, 4/9, 0.44
- 0.4, 4/9, 3/7, 0.44
- 0.4, 3/7, 4/9, 0.44
Answer: D. 0.4, 3/7, 4/9, 0.44
Compare these values by converting fractions to decimals: 0.4, 3/7 (0.428), 0.44, and 4/9 (0.444). Choice D is the correct ascending order.
4. A nurse tracks the number of patients admitted to the emergency room each day over a one-week period. The data recorded are: 24, 33, 18, 51, 30, 29, 21. What is the median of this data set?
- 24
- 29
- 30
- 33
Answer: B. 29
To find the median, arrange the numbers in order (18, 21, 24, 29, 30, 33, 51) and identify the middle value, which is 29.
5. A hospital nurse-to-patient ratio is stated as 24:36. Which of the following represents this ratio in its simplest fractional form?
- 5/6
- 6/5
- 2/3
- 3/2
Answer: C. 2/3
To convert the ratio 24:36 to a fraction, write it as 24/36 and simplify by dividing by the greatest common factor (12) to get 2/3.
6. Which of the following lists the values below in order from least to greatest?
0, -1/2, -8, 0.75, -0.4
- -8, -1/2, -0.4, 0, 0.75
- -8, -0.4, -1/2, 0, 0.75
- 0.75, 0, -0.4, -1/2, -8
- -0.4, -1/2, -8, 0, 0.75
Answer: A. -8, -1/2, -0.4, 0, 0.75
To order rational numbers, convert fractions to decimals and arrange them from the most negative value to the most positive value.
7. A catering recipe for chicken stir-fry requires 12 ounces of sliced bell peppers for every 10 servings. If a chef has a bulk bag containing 100 ounces of bell peppers, how many servings can be prepared? (Round the final answer to the nearest whole number.)
- 67 servings
- 83 servings
- 98 servings
- 104 servings
Answer: B. 83 servings
Learn to solve proportions for the TEAS 7 math section by calculating servings based on a fixed ounce-to-serving ratio.
8. Which of the following values is the greatest?
- 2.65
- ⁸⁄₃
- 2.607
- ¹³/₅
Answer: B. ⁸⁄₃
To find the greatest value, convert all fractions to decimals: 2.65, 2.667, 2.607, and 2.6. Comparing hundredths shows 2.667 (8/3) is the largest.
9. A researcher is conducting a study to determine how the amount of daily protein intake affects the muscle mass growth in athletes over a six-month period. In this study, the measured muscle mass is considered which type of variable?
- Control variable
- Dependent variable
- Independent variable
- Qualitative variable
Answer: B. Dependent variable
Muscle mass is the dependent variable because it is the outcome being measured, which 'depends' on the amount of protein consumed (the independent variable).
10. Simplify the following algebraic expression: \n\n-6(x² + 6x - 4)
- -6x² - 36x + 24
- -6x² - 20x + 24
- -6x² - 36x + 10
- 6x² + 36x - 24
Answer: A. -6x² - 36x + 24
Simplify -6(x² + 6x - 4) by distributing -6 to each term, resulting in -6x² - 36x + 24. Pay close attention to negative sign multiplication rules.
11. A medical researcher notes that 8% of the participants in a study of 269 individuals reported a specific side effect. Which of the following values represents the exact number of participants who experienced the side effect?
- 2.152
- 21.52
- 215.20
- 538.00
Answer: B. 21.52
To find 8% of 269, convert 8% to the decimal 0.08 and multiply: 269 x 0.08 = 21.52.
12. A yardstick (3 feet tall) is held vertically and casts a shadow that is 4 feet long. At the exact same time, a flagpole nearby casts a shadow that is 27 feet long. How tall is the flagpole?
- 12.0 feet
- 20.25 feet
- 28.0 feet
- 30.5 feet
Answer: B. 20.25 feet
Calculate the height of a flagpole using proportional reasoning by comparing its shadow to the shadow of a yardstick. Correct answer: 20.25 feet.