Mathematics: Help please this is urgent

Help please this is urgent - id9589125, bcaughman6885

scastrowilson618

12.02.2022

1/8

Step-by-step explanation:

The figure is cut into eighths. 2/16 is equal to 1/8

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tawna6988owtjg6

10.06.2021

Answer with Step-by-step explanation:

In case of Bernoulli trails

The probability that a random variable occurs 'r' times in 'n' trails is given by

$P(E)=\binom{n}{r}p^r(1-p)^{n-r}$

where

'p' is the probability of success of the event

Part a)

probability that no contamination occurs can be found by putting r = 0

Thus we get

$P(E_1)=\binom{5}{0}0.1^0(1-0.1)^{5}=0.5905$

part b)

The probability that at least 1 contamination occurs is given by

$P(E)=1-(1-p)^{n}$

Applying values we get

$P(E_2)=1-(1-0.1)^{5}=0.4096$

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