Question

For the data set , Z-M =2.5 . if the mean is 20 , then find the value of mode . in 2 marks​

Answer 1

Answer:

Employment 11 14 17 Total 1 18 56 89 163 0 13 16 8 37 Total 31 72 97 200 What is the variance of employment? Give your answer to two decimal places.