For a set of data with a mean of 12 and a variance of 25, approximately 68% of the values will fall between 7 to 17.

Question

Quizplus · Accepted Answer

This statement is true according to the empirical rule, which states that for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean. In this case, one standard deviation is the square root of the variance (sqrt(25) = 5), so values between 12-5=7 and 12+5=17 should contain approximately 68% of the data.

For a Set of Data with a Mean of 12