How many bitstrings of length 15 that start with bit 111

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Reference no: EM133494078

Questions:

a. How many bitstrings of length 15 that either start with a bit 111 or end with 000?

b. A squash team is to contain 2 men and 2 women, chosen from 15 men and 9 women. In how many ways can the team be chosen?

c. A telephone number contains 10 digits. How many possible telephone numbers are there in which no digit is repeated?

Reference no: EM133494078

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