Question

Which of the following is a characteristic of the standard normal probability distribution?

A) Skewed distribution
B) Mean of 1
C) Standard deviation of 1
D) Bell-shaped curve

Answer 1

The characteristic of the standard normal probability distribution is a bell-shaped curve.

Step-by-step explanation:

The characteristic of the standard normal probability distribution is a bell-shaped curve (option D). The standard normal distribution is a special type of normal distribution with a mean of 0 and a standard deviation of 1. It is often denoted as Z-N(0,1).

Answer 2

Standard deviation of 1 is a characteristic of the standard normal probability distribution.

The correct option is C.

Step-by-step explanation:

The characteristic of the standard normal probability distribution is that it has a standard deviation of 1. This distribution is a specific form of the normal distribution with a mean of 0 and a standard deviation of 1, resulting in a bell-shaped curve when graphed. It is symmetrical around its mean and serves as a reference for other normal distributions through the process of standardization.

So, the correct option is C.