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ludmilkaskok [199]
3 years ago
10

Helpppp Plsssss Asap!!Thanks​

Mathematics
1 answer:
scZoUnD [109]3 years ago
4 0

Answer: This is a quadratic equation in x and can be solved using the quadratic formula:    x = (-b +_ (b^2 - 4 ac)^1/2) / (2 * a)

or (-7 +- (49 - (4 * 2 * 6))^1/2)  / (2 * 2)  where a=2, b=7, and c=6

and x = (-7 +- (49 - 48)^1/2) / 4 = (-7 +- 1) / 4

giving x = -8/4 and -6/4 or -2 and =3/2

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c. The sampling distribution of the sample means can be assumed to be approximately normal because the distribution of the sample data is not skewed

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From the given data, we have;

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Therefore, given that the participants are randomly selected and the majority of the participants make the same observation of improvement in the time to walk a mile, we have that, the majority of the outcomes show little difference in walk times after the program, therefore, the distribution of the sample data is not skewed and can be assumed to be approximately normal

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18/40 in it's simplest form​
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I guess I was help full for u

plz follow me for more updates

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