Primary data is the original data.

Primary data is the original data.

Primary data is the original data.

Write the given series in the ascending order.

Can we recall that the mode is the value that appears most often in a set.

Can we recall that the width is difference between upper and lower limit?

Frequency is the no. of times, a thing gets repeated.

We have to subtract 0.5 from lower limit and add 0.5 to the upper limit

Can we recall the formula of the class mark or mid point?

Can we take any centre value for a, i.e. Assumed mean