0 first10compositenumbers2. The weight of 12 students was measured (in

1.	0 first10compositenumbers2. The weight of 12 students was measured (in kg) and the results are as follows :41, 36, 38, 45, 42, 37, 49, 50, 52, 44, 48, 46(i) Arrange the weights in ascending order(i) What is the range of their weights?(ii) Find the mean weight.(iv) How many boys have weights more than the mean weight?
Answer» (i) In ascending order36, 37, 38, 41, 42, 44, 45, 46, 48, 49, 50, 52 (ii) Range of weights = (52 - 36) = 16 (iii) Mean weight = (36+37+38+41+42+44+45+46+48+49+50+52) /12= 528/12 = 44 (iv) 6 boys have weight more than mean weight

0 first10compositenumbers2. The weight of 12 students was measured (in kg) and the results are as follows :41, 36, 38, 45, 42, 37, 49, 50, 52, 44, 48, 46(i) Arrange the weights in ascending order(i) What is the range of their weights?(ii) Find the mean weight.(iv) How many boys have weights more than the mean weight?

Answer»

(i) In ascending order36, 37, 38, 41, 42, 44, 45, 46, 48, 49, 50, 52

(ii) Range of weights = (52 - 36) = 16

(iii) Mean weight = (36+37+38+41+42+44+45+46+48+49+50+52) /12= 528/12 = 44

(iv) 6 boys have weight more than mean weight