Frequency Distribution Table

The time required for students to do a science experiment and the number of students is shown in the following grouped frequency distribution table. Show information by a histogram and also by a frequency polygon.

In Q.1,Exercise 14.2, you were asked to prepare a frequency distribution table regarding the blood groups of 30 students of a class.Use this table to determine the probability that a student of this class, selected at random,has blood group AB.

Consider the following statements related to cumulative frequency polygon of a frequency distribution, the frequencies being cumulated from the lower end of the range : 1. The cumulative frequency polygon gives an equivalent representation of frequency distribution table. 2. The cumulative frequency polygon is a closed polygon with one horizontal and one vertical side. The other sides have non-negative slope. Which of the above statements is/are correct?

The following table gives the continous frequency distribution of a continous variable x What is the mean of the abuve frequency distribution?

The following is the distribution of weights (in kg) of 40 persons. Construct a cumulative frequency distribution (of the less than type) table for the data above.

The following table gives the frequency distribution of number of peas per pea pod of 198 pods : What is the median of this distribution ?

If the median of the following frequency distribution is 525, in the table given below, find the value of x and y. if total frequency is 100.

The following table shows the distribution of weights of seeds. Draw a frequency polygon.