2 years ago

Consider the scatter plot.

Mathematics

1 answer:

AnnZ [28]2 years ago

7 0

1)Negative Association;False
2)True
pls dont kill me if im wrong

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Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was

Ivan

Answer: $\pm0.1706$

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of $\alpha:0.05$ : $z_{\alpha/2}= 1.96$

Sample mean : $\overline{x}=2.5$

Standard deviation : $\sigma= 0.5$

We assume that this is a normal distribution.

Margin of error : $E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

i.e. $E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706$

Hence, the margin of error is $\pm0.1706$

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3 years ago

If p(x)= x2-3x+2 find value of p(0) p(2)

motikmotik

P(0)=2

P(2)=4

...................

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2 years ago

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toothless car wash (the kid next door) can wash 3 cars in one and a half hours. how long will it take to wash 10 cars

katrin2010 [14]

Answer:

5 hours

Step-by-step explanation:

1.5 (hours) / 3(cars) = 0.5 hours per car

0.5 x 10 = 5

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2 years ago

-5x - 15 = -200<br> solve for x

Whitepunk [10]

Answer: 37

Step-by-step explanation:

-5x - 15 = - 200

-5x = -200 + 15

-5x = -185

x = 37

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2 years ago

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Morgarella [4.7K]

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3 years ago

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