Question

For a normal probability distribution, a __________ standard deviation results in a skinnier curve that is tighter and taller around the mean.

A. continuous
B. smaller
C. larger
D. discrete

Answer 1

A smaller standard deviation results in a skinnier curve that is tighter and taller around the mean in a normal probability distribution.

Step-by-step explanation:

For a normal probability distribution, a smaller standard deviation results in a skinnier curve that is tighter and taller around the mean. The normal distribution is a continuous distribution that is bell-shaped, and it is used in various disciplines. The standard deviation determines the spread of the distribution, so a smaller standard deviation makes the curve narrower.