Statistics

In a bar diagram, if the height of a bar representing 'Apples' is 15 units and the scale is 1 unit = 5 kg, how many kg of apples are there?

Find the arithmetic mean of the first five odd natural numbers.

In a cumulative frequency table, if the less-than cumulative frequency for the class 20-30 is 45 and for 30-40 is 60, what is the frequency of the class 30-40?

If the mean of 6, 7, x, 8, 12 is 9, what is the value of x?

In a pie chart showing expenditures, Education is represented by a sector of 72 degrees. If total expenditure is Rs. 50,000, how much is spent on Education?

What is the lower quartile (Q1) of the following data: 2, 4, 6, 8, 10, 12, 14?

If the median of a dataset is 20 and the mean is 22, what is the approximate mode using the empirical relationship?

Find the median of the following frequency distribution: (X: 10, 20, 30, 40) (f: 3, 5, 8, 4).

A student's average marks in 5 subjects is 60. If the marks in the 6th subject is 90, what is the new average?

In a frequency distribution, if the mid-values are 5, 15, 25, 35, 45, what is the class width?

If every value in a dataset is increased by 5, what happens to the arithmetic mean?

In a histogram, what does the area of each rectangle represent?

The mean of 10 observations is 15. If one observation 24 is replaced by 34, what is the new mean?

Which measure of central tendency can be determined graphically using an Ogive?

In a set of data, the sum of deviations of all observations from their arithmetic mean is always:

If the range of a set of 5 consecutive even numbers is R, what is the value of R?

Calculate the Upper Quartile (Q3) for the following data: 10, 15, 20, 25, 30, 35, 40.

Which of the following is NOT a measure of central tendency?

The following pie chart shows the distribution of a student's daily routine. What angle represents 'Sleep' if it takes 8 hours?

For a symmetrical distribution, which of the following is true?