Georgeanne Calculated Descriptive Statistics for the Age of Residents in a Nursing

Georgeanne calculated descriptive statistics for the age of residents in a nursing home.She reported the mean age as 75 years,with a standard deviation of 10 years.Later she found that she had made an error in her calculations.One resident's age was entered as 27 when it should have been 72.When this correction is made

A) the standard deviation for the data set will decrease.
B) the standard deviation for the data set will not change.
C) the standard deviation for the data set will increase.
D) the correlation coefficient for the data set will become negative.