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

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question

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

9.3k points

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

2 Answers

4 votes

The answer would be 0.0595.

Nitori answered Dec 23, 2019

by Nitori

8.4k points

0 Comments

Please log in or register to add a comment.

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