Question

The two consecutive class mark for distribution are 52 and 57.find the class limits

Answer 1

Class marks are 52 , 57

Therefore class size = 57-52=5

Now we know lower and upper class limits for 52 are

lower limit=52 - 5/2=49.5 

upper limit=52+5/2= 54.5

Now for 57

lower limit= 57-5/2= 54.5

upper limit = 57+5/2= 59.5

Therefore we obtain

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