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Alex787 [66]
3 years ago
14

Which r–value represents the strongest negative correlation? –0.7 –0.22 0.38 0.9

Mathematics
2 answers:
Inga [223]3 years ago
5 0

Answer:

–0.7

Step-by-step explanation:

The correlation is the link between two variables. It only tells that there is a link between the two but the cause or other information cannot be obtained from correlation.

The correlation can be negative or positive. The value lies between zero and one.

Value closer to one or -1 means strong correlation and value close to zero means weaker correlation.

From the given options only two values show negative correlation and -0.7 is closest to -1 so it is the strongest ..

Evgen [1.6K]3 years ago
4 0

Answer:

-0.7

Step-by-step explanation:

just took it

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The football team has a total of 50 jerseys. There are 20 medium-sized jerseys. What percent of the jerseys are​ medium-sized je
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Suppose the FAA weighed a random sample of 20 airline passengers during the summer and found their weights to have a sample mean
Orlov [11]

Answer:

Step-by-step explanation:

Given Parameters

Mean, x = 180

total samples, n = 20

Standard dev, \sigma = 30

\alpha = 1 - 0.95 = 0.05 at 95% confidence level

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Critical Value, t_\alpha, is given by

t_{c}=t_{\alpha, df} = t_{0.05,19} = 1.729

a).

Confidence Interval, \mu, is given by the formula

\mu = x +/- t_c \times \frac{s}{\sqrt{n} }

\mu = 180 +/- 1.729 \times \frac{30}{\sqrt{20} }

\mu = 180 +/-11.5985

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b).

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Confidence Interval, \mu, is given by

\mu = x +/- t_c \times \frac{s}{\sqrt{n} }

\mu = 180 +/- 2.093 \times \frac{30}{\sqrt{20} }

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8 0
3 years ago
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