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2 years ago

8

Select all that apply. If there are 8 chocolate chip cookies out of 20 total cookies in a jar, what is the probability that you

will randomly choose a chocolate chip cookie?
A. 2/5
B. 0.4
C. 0.8
D. 40%

2 answers:

Gelneren [198K]2 years ago

7 0

Answer:

B) 0.4, D) 40% and A) 2/5

Step-by-step explanation:

Part/Whole=%/100

8/20=0.4*100=40%=2/5=0.4

marysya [2.9K]2 years ago

5 0

Answer:

A, B, D

Step-by-step explanation:

8 divided by 20

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Answer:

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Step-by-step explanation:

For this case we know the population deviation given by:

$\sigma = 5.5$

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution $\bar X$ and for this case we know that the distribution is given by:

$\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})$

And the standard error would be:

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And replacing we got:

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