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3 years ago

4

2 answers:

7 0

You would subtract 132.00 by 117.00 and you would get 15 then you would divide by 1.50 and you would get 10 so the answer is D

son4ous [18]3 years ago

4 0

Answer:

X > 10

Step-by-step explanation

The question says more than 132. So lets say Jinny has to earn $135 to meet her target.

132 - 117 = 18. She needs to earn 18 more dollars

18/ 1.50 = 12. She needs to sell 12 more to make 18 dollars

X > 10 says she needs to sell more than 10. Which is true

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3 years ago

Question 3 Solve for m. 4 over 3 m equals 4

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

If 90 percent of automobiles in Orange County have both headlights working, what is the probability that in a sample of eight au

Marta_Voda [28]

Answer:

$P(X \geq 7) = P(X=7) +P(X=8)$

And we can find the individual probabilities using the probability mass function

$P(X=7)=(8C7)(0.9)^7 (1-0.9)^{8-7}=0.3826$

$P(X=8)=(8C8)(0.9)^8 (1-0.9)^{8-8}=0.4305$

And replacing we got:

$P(X \geq 7) = P(X=7) +P(X=8)=0.3826 +0.4305=0.8131$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest "number of automobiles with both headligths working", on this case we now that:

$X \sim Binom(n=8, p=0.9)$