Question

the class marks of a distribution 61,66,71,76,81,86,91,96,101,106. Determine th class size, class limits and true class limits

Answer 1

differences between two class mark 66-61 =5
upper limit=66-1/2*5=66-2.5=63.5
lower limit=66+1/2*5=66+2.5=68.5
similarly you can find the other class intervals and calculate class limit
class size =68.5-63.5=5
hope it helps!

Answer 2

Answer:

differences between two class mark 66-61 =5

upper limit=66-1/2*5=66-2.5=63.5

lower limit=66+1/2*5=66+2.5=68.5

similarly you can find the other class intervals and calculate class limit class size =68.5-63.5=5