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z Medical Questions

Your Question

Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.

The number of students scoring 65 points or more is approximately
a. 95.
b. 75.
c. 50.
d. 65.
e. None of the above

Question 2
Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.

The average score on the exam was approximately
a. 75.
b. 10.
c. 65.
d. 50.
e. None of the above

Question 3
Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.
Approximately what percent of the students scored between 65 and 75 points?
a. 34%
b. 68%
c. 10%
d. 95%
e. None of the above

Question 4
Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.
The third quartile of the scores on the exam is approximately
a. 80 points.
b. 84 points.
c. 72 points.
d. 67 points.
e. None of the above

Question 5
Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.
A score of 85 corresponds to a standardized value of
a. 2.
b. 8.5.
c. 20.
d. -2.
e. None of the above

Question 6
Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.

A score of 50 corresponds to a standardized value of
a. 1.5.
b. -1.5.
c. -5.
d. 5.
e. None of the above

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