Question

HELP WILL GIVE MEDAL

Answer 1

The probability that an electronic device produced by a company does not function properly is equal to 0.1. If 10 devices are bought, then the probability, to the nearest thousandth, that 7 devices function properly is

Answer 2

........................................................

Answer 3

A. 0.057
B. 0.478
C. 0.001
D. 0

Answer 4

hint:
I think that we can apply the binomial probability:
\[\Large P = \left( {\begin{array}{*{20}{c}}
{10} \\
7
\end{array}} \right) \cdot {\left( {\frac{1}{{10}}} \right)^7} \cdot {\left( {\frac{9}{{10}}} \right)^3} = ...?\]

Answer 5

if I'm correct, p=729/7000000000

Answer 6

@Michele_Laino question asked for the ones functioning properly . probability of each functioning properly is 9/10