2 In how many ways can a committee of 5 people be chosen out of 9 people?
3 If two dies are tossed together what is the probability of having sum of 5 as the outcome.
4 If two dies are tossed together, what is the probability of having equal outcomes?
5 In how many ways can the word "HOSPITAL" be arranged?
6 In how many ways can the word "TOPO" be arranged
10 Find the standard deviation of the distribution 12,6,7,3,15,10,18,5
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