Question

The mean of a normally distributed set of data is 53 with a standard deviation of

6. Approximately 95% of all cases are expected to be between...

Answer 1

2 standard deviations of the mean. so, 41 to 65

Explanation:

from the empirical rule we know that for 95% we are in 2 standard deviations of the mean. so:

53- 6- 6 = 41

*2 minus 6s because 2 standard dev. with the mean

53 + 6 + 6 = 65