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3 years ago

Please help with my math work

Mathematics

2 answers:

likoan [24]3 years ago

5 0

Answer:

1:on both lines (x and y)

2: positive

3:i beileve so

4:i have no idea

Step-by-step explanation:

lilavasa [31]3 years ago

3 0

Answer: (1) is D because D is a further distance from the rest so it is an outlier (2) Negative because it starts at the top and goes further down (3) No because there are not a lot of dots in one place (4) scatter plots can show and identify other patterns in data and they are important because they show thing that other graphs don't you should care because they show very important information

Step-by-step explanation: (1)outliers are an observation that lies an abnormal distance from other values in a random sample from a population. (2)Positive slopes go up and Negatives slope fall down. (3) clusters are when a lot of dots are in one place. (4)

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What is the volume of the triangular prism

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Find the area of the triangle, them multiply by the depth.

Area of triangle = 1/2 x 9 x 8 = 36

Volume = 36 x 9 = 324 cubic centimeters.

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Answer:

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mafiozo [28]

Answer:

Step-by-step explanation:

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3 years ago

A medical study investigated the effect of calcium and vitamin supplements on the risk of older Americans for broken bones. A to

Korolek [52]

Answer:

Fraction of older Americans who were included in the study and suffered broken bones during the three-year period = (37/389) = 0.0951

Step-by-step explanation:

The fraction of older Americans who were included in the study and suffered broken bones during the three-year period?

This fraction = (Number of older Americans who suffered broken bones recorded during the three year period of the study)/(Total number of older Americans involved in the study)

Number of older Americans who suffered broken bones recorded during the three year period of the study = (11 from those that took the additional supplements) + (26 from those that did not take additional supplements) = 11 + 26 = 37

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7 0

3 years ago

When testing a claim that the majority of adult Americans are against the death penalty for a person convicted of murder, a rand

Black_prince [1.1K]

Using the z-distribution, it is found that the p-value is of 1.

At the null hypothesis, it is tested <u>that the majority is not against the death penalty</u>, that is:

$H_0: p \neq 0.5$

At the alternative hypothesis, it is <u>tested that the majority is against the death penalty</u>, that is:

$H_1: p > 0.5$

The test statistic is given by:

$z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}$

In which:

$\overline{p}$ is the sample proportion.

p is the proportion tested at the null hypothesis.

n is the sample size.

In this problem, the parameters are: $\overline{p} = 0.27, p = 0.5, n = 491$ .

Then, the value of the <em>test statistic</em> is:

$z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}$

$z = \frac{0.27 - 0.5}{\sqrt{\frac{0.5(0.5)}{491}}}$

$z = -10.19$

Using a z-distribution calculator, for a <u>right-tailed test</u>, as we are testing if the proportion is greater than a value, the p-value is of 1.

A similar problem is given at brainly.com/question/16313918

3 0

3 years ago