Question

write class size and class limits of the following 47,52,57,62,67,72,77​

Answer 1

Solution :

Given class mark :(xi)

47, 52,57,62,67,72,77

Class size (h)

= Difference of two

consecutive class marks

= 52 - 47

= 5

Now ,

Class limits :

( xi - h/2, xi + h/2)

( 47 - 5/2 , 47 + 5/2)

= ( 47 -2.5 , 47 + 2.5 )

= ( 44.5 - 49.5 )

Therefore ,

44.5 - 49.5

49.5 - 54.5

54.5 - 59.5

59.5 - 63.5

63.5 - 67.5

67.5 - 72.5

72.5 - 77.5

•••••

Answer 2

Answer:

shjriJrhjLpll"695877