The mean of 20, 40, 35, 42, and 45 is ____.

The geometric mean of 20 and 45 is ……….

A school has 4 section of Chemistry in Class X having 40, 35, 45 and 42 students. The mean marks obtained in Chemistry test are 50, 60, 55 and 45 respectively for the 4 sections. Determine the overall average of marks per student

Following is a data sample of 8 observations in ascending order. If the mean of this data is 31 and the mode is 35. Find the missing observations. 20 24 x 30 31 35 y 45

The weight (in kg) of seven students are given below: 35, 30, 42, 36, 38, 40, 45 Find the mean weight.

The attendance of a class of 45 boys for 10 days is given as 40, 42, 30, 35, 45, 44, 41, 38, 44 and 41 then the mean attendance of a class is

The marks obtained by 15 students in an examination are given below : 40, 20, 24, 19,20, 35, 12, 48, 29, 40, 45, 48, 42, 23, 35. Find the average mark of the students.

Weights (in kg) of 15 students of a class are 38, 42, 35, 37, 45, 50, 32, 43, 43 ,40, 36, 38, 43, 38 and 47? What is the mean weight?