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3 years ago

The following scatter plot demonstrates which type of correlation?

Mathematics

2 answers:

Nady [450]3 years ago

4 0

Therw are no outliers. Outliers is a point that is out of the range of the correlation.

The group of points is going down making it a negative.

The points are not spread out. They are clustered together enough to determine it is a correlation.

It is a negative correlation.

siniylev [52]3 years ago

3 0

Answer:

The answer is negative correlation

Step-by-step explanation:

Each point represent the result for an experiment. The shape of the graph makes a line with a negative slope, that means, when the X values increase the Y values decrease, and that is what is happening with the given graph.

A positive correlation would be for a line with a positive slope, i.e, the X values and Y values increase.

No correlation would be for a case where the graph doesn't describe any line.

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A college conducts a common test for all the students. For the Mathematics portion of this test, the scores are normally distrib

Jet001 [13]

Using the normal distribution, it is found that 58.97% of students would be expected to score between 400 and 590.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

$\mu = 502, \sigma = 115$

The proportion of students between 400 and 590 is the <u>p-value of Z when X = 590 subtracted by the p-value of Z when X = 400</u>, hence:

X = 590:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{590 - 502}{115}$

Z = 0.76

Z = 0.76 has a p-value of 0.7764.

X = 400:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{400 - 502}{115}$

Z = -0.89

Z = -0.89 has a p-value of 0.1867.

0.7764 - 0.1867 = 0.5897 = 58.97%.

58.97% of students would be expected to score between 400 and 590.

More can be learned about the normal distribution at brainly.com/question/27643290

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1 year ago

Grace wants to buy gumballs out of a vending machine in an airport. Two gumballs cost $0.80. If Grace uses exact change, in how

devlian [24]

She could use the following methods:
8 dimes
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2 years ago

Which graph has a slope of 1/4?

Arte-miy333 [17]

Answer:Please include images of the graphs!

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2 years ago

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You bought 50 shares of stock at $55 per share and sold them for $61 per share. The sale involves a broker’s commission of $0.30

malfutka [58]

Answer:

The profit made is;

b) $285)

Step-by-step explanation:

The given parameters are;

The number of shares bought, n = 50

The price each share is bought, CP = $55

The amount at which each share is sold, SP = $61

The amount the broker received per share, E = $0.30

Therefore, the amount of profit, 'P', is given as follows;

P = n × (SP - CP - E)

By substituting the values for the variables, we have;

P = 50 × (61 - 55 - 0.3) = 285

The amount made as profit, P = $285.00.

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2 years ago

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kirill115 [55]

Answer:

2275

Step-by-step explanation:

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