1.

Find the probability of getting. (i) two tails and one head when 3 coins are tossed. (ii) 2 heads when 4coins are tossed (iii) atleast one head when 5 coins are tossed (iv) a head an odd number of times a fair coin is tossed 200 times.

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Answer :`(i) (3)/(8) ` `(II) (3)/(8)` `(iii) (31)/(32)` `(iv) (1)/(2)`


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