Draw a histogram for the following data.
$\begin{array}{ccccccc}Classinterval& 10-15& 15-20& 20-25& 25-30& 30-35& 35-40\\ Frequency& 30& 95& 80& 55& 25& 50\end{array}$

Q.

Draw a histogram for the following data.
$\begin{array}{ccccccc}Classinterval& 10-15& 15-20& 20-25& 25-30& 30-35& 35-40\\ Frequency& 30& 95& 80& 55& 25& 50\end{array}$
[3 marks]

Q. Represent the following data by means of a histogram and find out mode.

Weekly wages	:	10-15	15-20	20-25	25-30	30-35	35-40	40-45
No of Workers	:	7	19	27	15	12	12	8

Q. Write the modal class for the following frequency distribution:

Class-interval:	10−15	15−20	20−25	25−30	30−35	35−40
Frequency:	30	35	75	40	30	15

Q.

Draw a histogram and the frequency polygon from the following data:
$\begin{array}{ccccccc}\text{Class interval}& 20-25& 25-30& 30-35& 35-40& 40-45& 45-50\\ \text{Frequency}& 30& 24& 52& 28& 46& 100\end{array}$ (3 marks)

Q. Find the mean of following distribution with step-deviation method to the nearest integer

Class	10 - 15	15 - 20	20 - 25	25 - 30	30 - 35	35 - 40
Frequency	5	6	8	12	6	3