Question -
Answer -
(i) 104, 114, 124, 134, 144, 154 and 164
Here class size = 114 тАУ 104 = 10
Here in first class, 104 тАУ 10/2
= 104 тАУ 5 = 99 and 104 + 5 = 109
тИ┤ Class will be 99-109
In this way other classes will be 109-119, 119-129, 129-139, 139-149, 149-159, 159┬м169
(ii) In 47, 52, 57, 62, 67, 72, 77, 82, 87, 92, 97, 102
Here class size = 52 тАУ 47 = 5
тИ┤ In first class, 47 тАУ 5/2 and 47 + 5/2
= 44.5-49.5
In this way other classes will be = 49.5-54.5, 54.5-59.5, 59.5-64.5, 64.5-69.5,69.5-74.5, 74.5-79.5, 79.5-84.5, 84.5-89.5, 89.5-94.5,94.5-99.5, 99.5-104.5 070 12.5, 17.5, 22.5, 27.5, 32.5, 37.5, 42.5, 47.5
Here class interval (size) = 17.5 тАУ 12.5 = 5
In the class = 12.5 тАУ 5/2 , 12.5 + 5/2
тЗТ 12.5 тАУ 2.5, 12.5 + 2.5
тЗТ 10, 15
тИ┤ First class will be 10-15
In this way other classes 15-20, 20-25, 25-30, 30-35, 35-40, 40-45, 45-50