Which of the following should be used to find the mean of the salary ?
A. Mean(salary)
B. Avg(salary)
C. Sum(salary)
D. Count(salary)
Answer:A
Which of the following should be used to find the mean of the salary ?
A. Mean(salary) B. Avg(salary) C. Sum(salary) D. Count(salary)
Explanation:Avg() is used to find the mean of the values. 3. Select count (____ ID)