Test: Arithmetic Mean of Grouped Data - Class 10 MCQ

The mean of 5 observations x, x + 2, x + 4, x + 6 and x + 8 is 11, then the value of x is:

The mean of a data set with 12 observations is calculated as 19.25. If one more value is included in the data, then for the new data with 13 observations, mean becomes 20. Value of this 13th observation is​

The mean of first ten even natural numbers is​

A batsman in his 12^th innings makes a score of 63 runs and thereby increases his average score by 2. His average score after 12^th innings is​

Which measure of central tendency takes in account all the data?​

The mean () of a frequency distribution is 45. If the value of  = 20 then the value of   is:

The mean of a data set with 12 observations is calculated as 19.25. If one more value is included in the data, then for the new data with 13 observations, mean becomes 20. The value of this 13^th observation is​

In the following distribution, if the mean of the distribution is 86 then the value of p is 

The mean of 1, 2, 3, 4 …n is given by

The arithmetic mean of the following data is

​

The mean of the marks obtained by 7 students in a group is 226. If the marks obtained by six of them are 340, 180, 260, 56, 275, 307, then the marks obtained by the seventh student are​

The mean of 15 numbers is 25. If each number is multiplied by 4, mean of the new numbers is