Statistics

The mean of 5 numbers is 18. If one number is excluded, their mean becomes 16. The excluded number is:

What is the relation between mean, median, and mode for a moderately skewed distribution?

For a distribution, if Σfx = 400 and Σf = 20, what is the mean?

In a pie chart, if the expenditure on education is Rs 5000 out of a total budget of Rs 20000, what is the angle of the sector for education?

Find the value of k if the mean of 2, 4, 6, k, 10 is 6.

If Q1 = 15 and Q3 = 35, what is the interquartile range?

The mean of 100 observations is 50. If one observation 50 is replaced by 150, what is the new mean?

If the sum of deviations of a set of values from 25 is 0, what is the mean of the values?

In a frequency distribution table, if the median class is 20-30, what is the lower limit 'L' used in the median formula?

Convert 54 degrees of a pie chart into percentage.

If the mean of 6, 8, 5, 7, x and 4 is 7, then x is:

In a grouped frequency distribution, the class with the highest frequency is called:

If Σf = 50 and the median is the 25.5th term, what is the size of the population N?

The arithmetic mean of 1, 2, 3, ... n is:

Find the mode of the following distribution: Class: 0-10, 10-20, 20-30; Freq: 5, 12, 8.

If each value in a dataset is multiplied by 3, what happens to the mean?

Calculate the Q3 of the dataset: 5, 10, 15, 20, 25, 30, 35.

In a 'less than' ogive, the cumulative frequency of a class is plotted against:

What is the mean of the first five multiples of 3?

If the mean of a frequency distribution is 25 and Σf = 10, find Σfx.