50 POINTS!!! PLEASE HELP Find the probability of x successes in n trials for the given probability of success p on each trial. x = 2, n = 6, p = 0.7

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asked Dec 22, 2019 104k views

3 votes

50 POINTS!!! PLEASE HELP

Find the probability of x successes in n trials for the given probability of success p on each trial.

x = 2, n = 6, p = 0.7

Mathematics
high-school

Marq asked

by Marq

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2 Answers

4 votes

The answer would be 0.0595.

Nitori answered Dec 23, 2019

by Nitori

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6 votes

The probability is 0.0595.

We find this using the formula

$_nC_x(p)^x(1-p)^(n-x) \\ \\=_6C_2{0.7)^2(1-0.7)^(6-2) \\ \\=_6C_2(0.7)^2(0.3)^4 \\ \\=15(0.7)^2(0.3)^4 = 0.0595$

Ashlei answered Dec 27, 2019

by Ashlei

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