3 years ago

Math question. giving brainliest!!! part 2!

1 answer:

6 0

Answer:

False

Step-by-step explanation:

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frutty [35]

Answer:

There is a probability of 76% of not selling the package if there are actually three dead batteries in the package.

Step-by-step explanation:

With a 10-units package of batteries with 3 dead batteries, the sampling can be modeled as a binomial random variable with:

n=4 (the amount of batteries picked for the sample).
p=3/10=0.3 (the proportion of dead batteries).
k≥1 (the amount of dead batteries in the sample needed to not sell the package).

The probability of having k dead batteries in the sample is:

$P(x=k) = \dbinom{n}{k} p^{k}q^{n-k}$

Then, the probability of having one or more dead batteries in the sample (k≥1) is:

$P(x\geq1)=1-P(x=0)\\\\\\P(x=0) = \dbinom{4}{0} p^{0}q^{4}=1*1*0.7^4=0.2401\\\\\\P(x\geq1)=1-0.2401=0.7599\approx0.76$

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3 years ago

EastWind [94]

A cylinder is made up of 1 rectangle which is folded into a circular shape. It also has 2 circles, one at the top, and one at the bottom.

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4 years ago

Ahat [919]

4/3 • 5/3 = 20/9 divided by 2 = 10/9

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3 years ago

Vesna [10]

The answer is 2,100. since there are 3 feet in 1 yard, you would multiple 700 by 3.

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3 years ago

iVinArrow [24]

C bc the x is where the right angle is and the 2 sides of a right angle is going to be equal

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3 years ago