ML AGGARWAL CLASS 7 Chapter 17 Data Handling Exercise 17.3

 Exercise 17.3

Question 1

(i) 1,3,3,4,5,5,6

Median =4

(ii) 

$\begin{aligned} 1,3,3,4,5, & 5,6,6 \\ \text { Median } &=\frac{4+5}{2} \\ &=\frac{9}{2} \\ &=4.5 \end{aligned}$

Question 2

(i) 3,1,5,6,3,4,5,3

mode =3

(ii)In the given frequency distribution , we find that the observation 22 has maximum frequency so, the mode is = 22

Question 3

12,12,13,13,14,14,14,16,19

$\begin{aligned} \text { Median } &=14 \\ \text { Mode } &=14 \end{aligned}$

Question 4

5,9,10,12,15,16,19,20,20,20,20,23,29,25,25

Median = 20

Mode = 20

Question 5

(i) 32, 35,36,37,38,38, 40 , 42,43,43,43,45,,47,50

Median = 40

Mode = 38,43

(ii)Yes (38,43)

Question 6

6,8,10,10,15,15,15,50,80,100 ,120

Mean = $\frac{6+8+10+10+15+15+15+50+80+100+120}{11}$

Median= 15 

Mode = 15

NO, all the there are not same

Question 7

Mode = 15