If you were to select a score at random from a distribution that follows a normal curve, what approximately is the probability of selecting a score between Z scores of 0 and +1?
A)10%
B)55%
C)34%
D)14%

Question

Quizplus · Accepted Answer

The area under a normal curve between Z scores of 0 and +1 is approximately 34%. This is a well-known fact in statistics and can be found by looking at a standard normal distribution table or using a calculator with a normal distribution function. Therefore, the correct answer is C, which corresponds to the 34% probability.

If You Were to Select a Score at Random from a Distribution