Statistics

What is the mean of the data set: 5, 10, 15, 20, 25?

If the median of the data set 3, 7, x, 15, 18 is 10, what is the value of x?

The mode of the data set 4, 6, 6, 7, 8, 8, 8, 9 is:

For grouped data, the class interval with the highest frequency is called:

If the mean of 5 observations is 12 and one observation is 20, what is the mean of the remaining 4 observations?

In a frequency distribution, the cumulative frequency just greater than or equal to n/2 corresponds to:

If the mean of a data set is 20 and the variance is 16, what is the standard deviation?

The formula for the mode in a grouped frequency distribution is:

If the mean of the data 2, 4, 6, 8, x is 6, find x.

Given the frequency distribution: Class intervals: 0-10, 10-20, 20-30, 30-40; Frequencies: 5, 8, 12, 5. Find the median.