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Leni [432]
2 years ago
9

14.4 .3 Two students are needed to work in the school store during the lunch hour every day, and four students volunteer for thi

s work. What is the greatest number of days that can be arranged in which no pair of the four students work together more than once?
Mathematics
1 answer:
Ray Of Light [21]2 years ago
6 0

Answer:

6

Step-by-step explanation:

=4!/(4-2)!2!

=4x3x2x1/2x2

=12/2

=6

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A multiple choice test has four possible answers for each question. Let X be the number of correct responses in a test of 100 qu
dimulka [17.4K]

Answer:

a. 4.33.

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If there is only one correct answer out of four alternatives, the expected proportion of correct answers is p =0.25

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2 years ago
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