Question

The weekly pocket expenses of 15 students of a class are given below :

62, 80, 111, 75, 84, 75, 60, 62, 100, 84, 62, 100, 111, 84, 62

(a) Construct a bar graph.

(b)Calculate the range of this data.

(c) What is the average weekly expenditure of the class ?

(d)Calculate the mode and median.​

Answer 1

Answer:

Step-by-step explanation:

1.range=maximum no.-minimum no.

111-60=51

2.mean=total no.of pocket money/total no. of student

62+80+111+75+84+75+60+62+100+84+62+100+111+84+62/15

1212/15

=80.8=81

3. mode =no. which come maximum times

62 has come 4 times

so mode is 62

median=n+1/2

First arrange in ascending order

60,62,62,62,62,75,75,80,84,84,84,100,100,111,111

n+1/2=15+1/2=8

8 no. is 80

so median is 80

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