MAKE SURE TO SHOW YOUR WORK!!!!!

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asked May 19, 2022 152k views

5 votes

MAKE SURE TO SHOW YOUR WORK!!!!!

Mathematics
middle-school

Kurt Mueller asked

by Kurt Mueller

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Okay I don’t know what is happening

Pneuma answered May 21, 2022

by Pneuma

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Answer:

The mean of Quiz 2 scores is greater than the mean of Quiz 1 scores, but variability is the same.

${ \tt{quiz \: 1}} : { \tt{ (70 + 91 + 85 + 87 + 73 + 74 + 77 + 83)/(8) }} \\ = 80 \\ \\ { \tt{quiz \: 2}} : { \tt{ (75 + 82 + 78 + 96 + 92 + 79 + 90 + 88)/(8) }} \\ = 85$

$\\ \\ { \underline{ \blue{ \tt{⚜becker \: jnr}}}}$

Bwerks answered May 23, 2022

by Bwerks

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