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3 years ago

12

A frost has caused a temporary spike in the price of orange juice. The price is now $10 a gallon. Before the frost, the price wa

s $4 a gallon. How much more expensive is orange juice now? A) 0.25 times b) 1.5 times c) 2.5 times d) 5 times e) 6 times

1 answer:

alex41 [277]3 years ago

6 0

C) 2.5 times more expensive

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Answer:

b

Step-by-step explanation:

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2 years ago

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. If the true percenta

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Answer:

The probability is 0.057797

Step-by-step explanation:

Consider the provided information.

It is given that true percentage of voters who vote for the proposition is 63%,

Let p is probability of success.

According to the binomial distribution:

$P(x;p,n)=^nC_x(p)^x(1-p)^{(n-x)}$

Substitute n=7, p=0.63 and x=2 in the above formula.

$P(x;p,n)=^7C_2(0.63)^2(1-0.63)^{(7-2)}$

$P(x;p,n)=\frac{7!}{2!5!}(0.3969)(0.37)^{5}\\P(x;p,n)=21(0.3969)(0.37)^{5}\\P(x;p,n)=0.0577974947199\\P(x;p,n)\approx0.057797$

Hence, the probability is 0.057797

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3 years ago

Given f(x)=2x-8, find f(3)

IgorLugansk [536]

F(3)=2*3-8=-2.
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3 years ago

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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3 years ago