For any distribution, what is the z-score corresponding to the mean?_____. What is the z-score corresponding to the 2 standard deviations above the mean?______. For a sample with M = 80, a score of X = 88 corresponds to z = 2.00. What is the sample standard deviation?_____.

## Answer

Q4)
Z-score corresponding to the mean is 0.
As the formula for z-score is (X-mean)/Standard deviation,
When X=mean then Z =0/STD.DEV =0
TWO standard deviation from the mean it means X-mean =2 Standard
deviation
Thus z-score = (2 standard deviation)/standard deviation =2
**answer- > 0,2**
Q5) Z=Zscore,X=value =88 and M=mean = ,Standard
deviation=

**Answer =>4**