The blood groups of 30 students are recorded as follows:
A, B, O, A, AB, O, A, O, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A
Prepare a frequency distribution table for the data.

Solution:

The number of students who have a certain type of blood group is known as the frequency of those blood groups.

Frequency distribution table of the given data is

Therefore, the frequency distribution table for the given data is mentioned above.

✦ Try This: The following observations are arranged in ascending order : 32, 30, 35, 22, x, x + 2, 72, 70, 85, 90. If the median is 50, find the value of x.

☛ Also Check: NCERT Solutions for Class 9 Maths Chapter 14

NCERT Exemplar Class 9 Maths Exercise 14.3 Problem 1

The blood groups of 30 students are recorded as follows: A, B, O, A, AB, O, A, O, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A. Prepare a frequency distribution table for the data.

Summary:

The blood groups of 30 students are recorded as follows: A, B, O, A, AB, O, A, O, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A. The frequency distribution table for the data is mentioned above

☛ Related Questions:

• The value of π upto 35 decimal places is given below: 3.14159265358979323846264338327950288. Make a . . . .
• The scores (out of 100) obtained by 33 students in a mathematics test are as follows: 69, 48, 84, 58 . . . .
• Prepare a continuous grouped frequency distribution from the following data: Mid-point Frequency 5 4 . . . .