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BlackZzzverrR [31]
4 years ago
9

PRE CALC, please help 22 POINTS

Mathematics
1 answer:
earnstyle [38]4 years ago
6 0

Answer:

D. f(x)=3^x+5

Step-by-step explanation:

D. have a domain and range

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Suppose that a particular candidate for public office is in fact favored by 48% of all registered voters in the district. a poll
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Given that <span>a particular candidate for public office is in fact favored by 48% of all registered voters in the district, thus p = 0.48

If </span><span>a polling organization will take a random sample of 550 voters, i.e. n= 550.

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P(\hat{p}\ \textgreater \ 0.5)=1-P(\hat{p}\leq0.5) \\  \\ =1-P\left(z\leq \frac{0.5-0.48}{\sqrt{ \frac{0.48(1-0.48)}{550} }} \right) \\  \\ =1-P\left(z\leq \frac{0.02}{\sqrt{ \frac{0.2496}{550} }} \right)=1-P\left(z\leq \frac{0.02}{0.0213} \right) \\  \\ =1-P(z\leq0.9388)=1-0.82609=0.1739

Therefore, </span><span>the approximate probability that p̂ will be greater than 0.5, causing the polling organization to incorrectly predict the result of the upcoming election is 0.1739.</span>
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4 years ago
What is the decimal expansion for 7 over 9
jok3333 [9.3K]

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0.77777777......

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You divide them. Hope I helped!

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