Question

give me answers with explain
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Answer 1

Step-by-step explanation:

1 answer 10 frequency

rest I don't know

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Answer 2

Answer:

Here it is...

Step-by-step explanation:

i) 25

Lower limit is the first number or least number of a class.

ii) 40

Upper limit is the last number or greatest number of a class.

iii) 52.5

Class mark = (Upper Limit + Lower limit)/2

= (55+50)/2 = 105/2 = 52.5

iv)5

Size of class = Upper Limit - Lower limit

= 35-30 = 5