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frutty [35]
3 years ago
7

What is rank correlation?​

Mathematics
1 answer:
Irina-Kira [14]3 years ago
6 0

Step-by-step explanation:

it's any of several statistics that measure an ordinal association. Measures the degree of similarity between two rankings.

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I report if u guess or answer randomly. Which confidence level would produce the widest interval when estimating the mean of a p
kap26 [50]

Answer:

B. 61%

Step-by-step explanation:

When we have the standard deviation of a sample, we use the t-distribution.

The width of an interval is related to the margin of error, which is given by the following equation:

M = T*s

In which T is related to the confidence level(and the sample size) and s is the standard deviation of the sample. Higher confidence levels have higher values of T.

A higher margin of error means that the interval is wider. To have a higher margin of error, we desire a higher value of T, which is achieved with a higher confidence level.

So the correct answer is:

B. 61%

5 0
3 years ago
Greg is 22 years older than his sister linda. In 3 years he will be twice as old as linda. How old is each of them now?
lesya [120]
I have no idea how to help you srry . . . . .
8 0
3 years ago
Find the area of the trapezoid.
irga5000 [103]

Answer:

The area of this trapezoid is 28 square meters

Step-by-step explanation:

A=a+b /2 h

7 0
3 years ago
The formula for the slant height of a cone is , where S is surface area of the cone. Use the formula to find the slant height, l
liq [111]

we know that

The formula of the surface area of the cone is equal to

SA=\pi r^{2}+\pi rl

where

SA is the surface area

r is the radius of the cone

l is the slant height

in this problem we have

SA=500\pi\ ft^{2}\\r=15\ ft\\l=?

Solve the formula for l

SA=\pi r^{2}+\pi rl\\ \\\pi rl=SA-\pi r^{2} \\ \\l=\frac{SA-\pi r^{2} }{\pi r}

substitute the values

l=\frac{500\pi -\pi 15^{2} }{\pi15}\\ \\l=\frac{275}{15}\ ft\\ \\l=\frac{55}{3}\ ft\\ \\l=18\frac{1}{3}\ ft

therefore

<u>the answer is</u>

The slant height is 18\frac{1}{3}\ ft

7 0
4 years ago
Read 2 more answers
Solve 1/X= 1/t + 1/n for X
umka21 [38]
The answer is x = 2 that's what I think
8 0
3 years ago
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