4. Find : a) Total = 300 Average = 30 No. of item = ? who P = ? b) No. of item = 21 Average = 21 Total = ? =
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Answer:
total = 300 average = 30 of item= ?
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Answer:
av. = sum of outcome / total no of outcomes
no. of items = sum of outcome / av.
= 300 / 30
hence, 10 items
B.
total = no. of outcome * av.
hence = 21 * 21 = 441
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