9. A survey of 200 families shows the following results:
No. of boys in a family 0 1 2 3
No. of families
15 150 I 10 257
Out of these, one is chosen at random. Find probability that the chosen family has:
(a) 3 boys
(b) At least 2 boys
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1
Answer:
Maybe question is wrong.
Step-by-step explanation:
No. of families doesn't add up to 200.
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