3 years ago

When figuring the pooled population variance estimate in a t test for independent means?

1 answer:

4 0

The appropriate response is a weighted average. It is a mean ascertained by giving qualities in an informational index more impact as indicated by some characteristic of the information. It is normal in which every amount to have arrived at the midpoint of is allocated a weight, and these weightings decide the relative significance of every amount on the normal.

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Ksenya-84 [330]

Answer:

Step-by-step explanation:

substitute the value of y in the first equation.

7x-3(5x-4)=20

7x-15x+12=20

-8x=20-12

x=8/-8

x= -1

then you substitute the value of x on the y equation to find y

y=5×-1 -4

y= -5-4

y= -9

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wariber [46]

Answer:

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Step-by-step explanation:

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2 years ago

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vova2212 [387]

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Step-by-step explanation:

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3 years ago

What is the value of y? Enter your answer in the box. y= ??

kenny6666 [7]

Answer:

Step-by-step explanation:

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