In a frequency distribution, if a = assumed mean = 55, ∑ fi = 100, h = 10 and ∑ƒiμi = -30, then find the mean of the distribution

The following data gives information on the observed life times (in hours) of 150 electrical components

If the mean of the following distribution is 54, find the missing frequency x:

Find the mode of the following frequency distribution:

For helping poor girls of their class, students saved pocket money as shown in the following table:

Find mean and median or this data.

The Median of the following distribution is 35.Find the value of x:

Find the median of the following data

In a school, weights of 62 teachers was recorded as follows:

Draw a ‘more than type’ ogive for this distribution and hence obtain median from the curve.

Find the missing frequencies (f₁, f₂ and f₃) in the following frequency distribution when it is given that f₂ : f₃ = 4 : 3 and mean = 50.

Draw a less than type ogive for the following distribution

If the median height of 50 students of a class in the following frequency distribution is 144 cm, find the missing frequencies x and y

The following distribution given below gives the daily income of 50 workers in a factory

Convert the above distribution to a less than type cumulative frequency distribution

Make a frequency distribution table for the given table:

Find the mode of the following data

Find the mean, median and mode of the following data:

Convert the following frequency distribution to a more than type cumulative frequency distribution

The weekly income of 600 families is given below

Write the frequency distribution table for the following data:

Calculate mode of the following data

Draw a less than type ogive of the following distribution:

Find the mean, mode, and median of the following frequency distribution:

Draw ‘less than ogive’ and ‘more than ogive’ for the following distribution and hence find its median

Draw ‘less than ogive’ and ‘more than ogive’ for the following distribution and hence find its median

If the mean of the following frequency distribution is 91, find the missing frequencies (f₁,f₂)

If the mean of the following frequency distribution is 145, find the missing frequencies (f₁,f₂)

Write the median class of the following distribution :

What is the lower limit of the modal class of the following distribution

The following table gives the daily income of 50 workers of a factory:

Find the mean, mode and median of the above data.

During the medical check-up of 35 students of a class their weights were recorded as follows:

Draw a less than type and a more than type ogive from the given data. Hence obtain the median weight from the graph

Find the mode, median and mean of the following data