Q. 543.5( 4 Votes )

# The marks in a subject for 12 students are as follows:

31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, 29

For the given data, find the

(a) Range (b) Mean

(c) Median (d) Mode

Answer :

a) Range = highest marks–lowest marks

= 42–17

= 25

b) Mean =

Sum of values = 31 + 37 + 35 + 38 + 42 + 23 + 17 + 18 + 35 + 5 + 35 + 29

= 345

Number of values = 12

Mean = = 28.75

c) Median

1^{st} arrange data in ascending order

17, 18, 23, 25, 29, 31, 35, 35, 35, 37, 38, 42

For even number of terms

Median = mean of and term

Median = mean of 6^{th} and 7^{th} term

= = 33

d) Mode

It is the marks which is obtained by maximum students

Mode = 35 (Comes for 3 students)

Rate this question :

The marks in a subject for 12 students are as follows:

31, 37, 35, 38, 42, 23, 17, 18, 35, 25, 35, 29

For the given data, find the

(a) Range (b) Mean

(c) Median (d) Mode

NCERT - Exemplar MathematicsThe following are weights (in kg) of 12 people.

70, 62, 54, 57, 62, 84, 75, 59, 62, 65, 78, 60

A. Find the mean of the weights of the people.

B. How many people weigh above the mean weight?

C. Find the range of the given data.

NCERT - Exemplar MathematicsFind the median of first nine even natural numbers.

NCERT - Exemplar MathematicsFind the median of the given data if the mean is 4.5.

5, 7, 7, 8, x, 5, 4, 3, 1, 2

NCERT - Exemplar MathematicsFind the mean of the first ten even natural numbers.

NCERT - Exemplar MathematicsState whether the statements are True or False.

Mean can never be a fraction.

NCERT - Exemplar MathematicsState whether the statements are True or False.

Mean of the data is always from the given data.

NCERT - Exemplar Mathematics