The Normal Distribution Has a Greater Percentage of Its Area

question 33

Multiple Choice

The normal distribution has a greater percentage of its area close to the mean and much less in the tails.
-Find the area of the shaded region. The graph depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test) .

• A) 0.4400
• B) 0.7486
• C) 0.6293
• D) 0.8051

Understand the concepts of different probability distributions including normal, uniform, binomial, and exponential distributions.

Calculate and interpret the areas under the normal distribution curve.

Distinguish between the characteristics of continuous and discrete probability distributions.

Compute probabilities and values associated with the standard normal distribution.