Statistics

What is the median of the data set: 12, 15, 18, 20, 22?

If the mean of five numbers is 24, what is the sum of these numbers?

The mode of the data set 5, 7, 5, 9, 10, 5, 7 is:

Find the range of the following data: 34, 56, 23, 89, 45.

The marks obtained by 7 students are: 45, 50, 55, 60, 65, 70, 75. What is the median?

If the mean of 10 observations is 18, and one observation is wrongly taken as 24 instead of 42, what is the correct mean?

A frequency distribution has the following frequencies: 5, 8, 12, 20, 10. What is the total number of observations?

The mean of first 10 natural numbers is:

If the mode of a grouped data lies in the class interval 20-30, which of the following could be true?

In a data set, the mean is 50 and the median is 45. What can be said about the distribution?