EASY

10th West Bengal Board

IMPORTANT

Earn 100

The marks obtained by some students in Mathematics are given below:

$40, 60, 64, 48, 0, 36, 100, 80, 84, 52, 72, 4, 28, 32, 20$ .

Calculate the mean marks.

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Important Questions on Measures of Central Tendency

EASY

10th West Bengal Board

IMPORTANT

SCHOOL MATHEMATICS Class 10>Chapter 9 - Measures of Central Tendency>EXERCISE 1A>Q 2

The cost price $(in ₹)$ of $12$ books are given below:

$16, 20, 24, 20, 28, 20, 16, 32, 24, 8, 20, 12$ .

Find the mean cost price of the books?

EASY

10th West Bengal Board

IMPORTANT

SCHOOL MATHEMATICS Class 10>Chapter 9 - Measures of Central Tendency>EXERCISE 1A>Q 3

Find the mean $(in kg)$ from the frequency distribution table given below.

Weight $(in kg)$	$50$	$55$	$60$	$65$	$70$	Total
Number of persons	$15$	$20$	$25$	$30$	$10$	$100$

EASY

10th West Bengal Board

IMPORTANT

SCHOOL MATHEMATICS Class 10>Chapter 9 - Measures of Central Tendency>EXERCISE 1A>Q 4

In an examination the marks obtained by $30$ students in a subject is given below. Find the mean of the marks (Give answer to two decimal places).

Number of students	$4$	$2$	$3$	$5$	$7$	$5$	$4$
Marks obtained	$50$	$55$	$63$	$70$	$71$	$80$	$91$

EASY

10th West Bengal Board

IMPORTANT

SCHOOL MATHEMATICS Class 10>Chapter 9 - Measures of Central Tendency>EXERCISE 1A>Q 5

Find the mean selling price $(in ₹)$ of a table from the following data.

Price of table $(in ₹)$	$360$	$400$	$440$	$480$
Number of tables sold	$14$	$11$	$9$	$6$

EASY

10th West Bengal Board

IMPORTANT

SCHOOL MATHEMATICS Class 10>Chapter 9 - Measures of Central Tendency>EXERCISE 1A>Q 6

The age of $40$ friends of Debkumar is given in the following table:

Age (in years)	$15$	$16$	$17$	$18$	$19$	$20$
Number of friends	$4$	$7$	$10$	$10$	$5$	$4$

Find the mean age (in years) of the friends of Debkumar by direct method.

MEDIUM

10th West Bengal Board

IMPORTANT

SCHOOL MATHEMATICS Class 10>Chapter 9 - Measures of Central Tendency>EXERCISE 1A>Q 7

Taking $13$ years as assumed mean, find the mean from the following distribution table (round of the answer to correct two decimals).

Number of friends	$6$	$12$	$19$	$10$	$15$	$29$	$26$	$23$	$17$	$11$	$8$	$6$	$5$
Age (in years)	$8$	$9$	$10$	$11$	$12$	$13$	$14$	$15$	$16$	$17$	$18$	$19$	$20$

MEDIUM

10th West Bengal Board

IMPORTANT

SCHOOL MATHEMATICS Class 10>Chapter 9 - Measures of Central Tendency>EXERCISE 1A>Q 8

Find the mean from the following frequency distribution table by assumed mean method.

Daily wages $(in ₹)$	$12.5 - 17.5$	$17.5 - 22.5$	$22.5 - 27.5$	$27.5 - 32.5$	$32.5 - 37.5$
Numbers of labours	$2$	$22$	$19$	$14$	$3$

MEDIUM

10th West Bengal Board

IMPORTANT

SCHOOL MATHEMATICS Class 10>Chapter 9 - Measures of Central Tendency>EXERCISE 1A>Q 9

Find the mean of the marks from the frequency table:

Class interval	$1 - 4$	$4 - 9$	$9 - 16$	$16 - 27$
Frequency	$6$	$12$	$26$	$20$

The marks obtained by some students in Mathematics are given below: 40,60,64,48,0,36,100,80,84,52,72,4,28,32,20. Calculate the mean marks.

Important Questions on Measures of Central Tendency

Learn and Prepare for any exam you want !

The marks obtained by some students in Mathematics are given below:

$40, 60, 64, 48, 0, 36, 100, 80, 84, 52, 72, 4, 28, 32, 20$ .

Calculate the mean marks.