Question

Using the idea of the Empirical Rule for a normal distribution, explain what percent of individuals would fall in the given range. iܒܫܡܗ Si The range of IQ scores from 80 to 120, when the mean IQ score is 100 and the standard deviation is 10.

Answer 1

Answer = 95.5%

From this information given.

We have a mean value of 100 and a standard deviation value of 10

To obtain the range from 80 to 120.

This will be moving 2(S.D) to the left and 2(S.D) to the right of the mean.

From theory, values within 2S.D from the mean, represent 95.5% of the given data.

Therefore, the percent of individuals that would fall in the given range is

95.5%