A set of data with a mean of 62 and a standard deviation of 5.7 is normally distributed. Find the value that is - 1 standard deviation from the mean

To answer this question, you must know what the standard deviation is.

The standard deviation is an index that measures the dispersion of a data set, while the largest is the standard deviation most dispersed are the data with respect to the mean value.

For a normal distribution, it is known that 68% of the data is not more than one standard desviation of the mean.

In this case, when they talk about - 1 standard deviation of the mean.

Is:

average - 1 standard deviation

So

62 - 5.7 = 56.3

Therefore, the value sought is 56.3