class 9th
answer plz
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Answer:
No tail=70/200
= 35/100
=0.35
One tail=210/200
= 105/100
= It is not correct because frequency is not correct
Two tail=135/200
= 27/40
= 0.67
Three tail=85/200
= 17/40
=0.43
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Answer:
Total number of chances = 23 + 72 + 77 + 28 = 200
Number of chances of coming 2 heads = 72
therefore P( coming 2 heads)= 514 / 642 = 9 / 25
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