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lara [203]
3 years ago
14

Slope of (7,2) and (5,10)

Mathematics
2 answers:
marishachu [46]3 years ago
8 0

Answer:

-4

Step-by-step explanation:

sweet [91]3 years ago
6 0

Answer:

-4

Step-by-step explanation:

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A treatment is administered to a sample of n = 9 individuals selected from a population with a mean of µ = 80 and a standard dev
stepan [7]

Answer:

a) M =82

Step-by-step explanation:

Let´s study this as a Normal distribution.

As we know in a normal distribution the z score is = (X-μ)/(sd/sqrt(n))

where

X = mean for the taken sample = What we want to know in this problem

μ = Total population mean =80

sd= standard deviation= 12

n = sample size=9

So in this case z=( X-80)/(12/sqr(9))= (X-80)/4

also we know that the effect size taken by the machine is 0.5, which is the same as the z-score

so...

0.5 = (X-80)/4 => 0.5*4 = X-80

2+80 = X

X = 82

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4 years ago
Solve for r.<br><br> 3r − 2r =
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