Statistics Quiz 4

The mean of first ten odd natural numbers is

The width of the class interval 40 – 50 is

The value of the observation which occurs most frequently is called

The average weight of 5 packets is 24 kgs and the average weight of another 10 packets is 12 kgs, then average weight of 15 packets is …………

Mode of the scores 7, 8, 5, 6, 3, 6, 7, 6, 1 is …………

12.5 is the class mark of the class interval

Mean of three consecutive even numbers is 16. The numbers are

If each observation of the data 5, 6, 8, 10, 12, 14, 14, 15, 16, 20 is multiplied by 2, then median of new data is …………

Cumulative frequency is used in finding, which of the following?

If three students with marks 26, 27 and 28 were joined, which class frequency changes?