Kerala Board Solutions for Chapter: Statistics, Exercise 5: Exercise 5

Author:Kerala Board

Kerala Board Mathematics Solutions for Exercise - Kerala Board Solutions for Chapter: Statistics, Exercise 5: Exercise 5

Attempt the free practice questions on Chapter 6: Statistics, Exercise 5: Exercise 5 with hints and solutions to strengthen your understanding. Standard 9 Mathematics Part - 2 solutions are prepared by Experienced Embibe Experts.

Questions from Kerala Board Solutions for Chapter: Statistics, Exercise 5: Exercise 5 with Hints & Solutions

MEDIUM
9th Kerala Board
IMPORTANT

Find different sets of 6 different numbers between 10 and 30 with the mean as 20.

MEDIUM
9th Kerala Board
IMPORTANT

Find different sets of 6 different numbers between 10 and 30 with the mean as 15.

MEDIUM
9th Kerala Board
IMPORTANT

Find different sets of 6 different numbers between 10 and 30 with the mean as 25.

MEDIUM
9th Kerala Board
IMPORTANT

The table below shows the children in a class, sorted according to their height. What is the mean height of a child in this class?

Height (cm) Number of children
148-152 8
152-156 10
156-160 15
160-164 10
164-168 7

 

HARD
9th Kerala Board
IMPORTANT

The teachers in a university are sorted according to their ages, as shown below. What is the mean age of a teacher in this university?

Age Number of persons
25-30 6
30-35 14
35-40 16
40-45 22
45-50 5
50-55 4
55-60 3

 

HARD
9th Kerala Board
IMPORTANT

The table below shows children in a class sorted according to their weights. The mean weight is calculated as 26 kilograms. How many children have weights between 23 and 25 kilograms?

Weight (kg) 21-23 23-25 25-27 27-29 29-31 31-33
Number of children 4   7 6 3 1