areas and relative Frequencies. Consider the graph of the normal distribution in Figure 13, which shows the relative frequencies in a distribution of IQ scores. The distribution has a mean of 100 and a standard deviation of 16.

a. What is the total area under the curve?

b. Estimate (using area) the relative frequency of values less than 100.

c. Estimate the relative frequency of values greater than 110.

d. Estimate the relative frequency of values less than 110.

e. Estimate the relative frequency of values between 100 and 110.

Transcribed Image Text:

40 55 70 70 85 100 IQ scores 115 130 145 160