PROBLEM1 There are 17 people in an office with 4 different phone lines. If all the...

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Image for PROBLEM1 There are 17 people in an office with 4 different phone lines. If all the lines begin to ring at once

math Statistics-And-Probability

Answer 1

Answer #1

We must select 4 people from the 17 in the office, or

$C(17, 4) = \binom{17}{4} = \frac{17!}{4!13!} = 2380$

groups.

Answer 2

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