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Harman [31]
3 years ago
13

PLEASE HELPP !! :C please I'll give brainly to whoever gets it correct

Mathematics
2 answers:
ella [17]3 years ago
6 0
It is A because there is a multiplier by 1/15, and using the distributive property, both the slope and the y intercept will get multiplied by 1/15.
Answer:
A
The slope is changed by the factor of 1/15
The y-intercept is changed by the factor of 1/15. Hope this helps!
aalyn [17]3 years ago
4 0

Its A, and both by a factor 1/15

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3 years ago
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PROBLEM 6. 10 A histogram has mean 70 and standard deviation 5 If the histogram is not bell shaped but it is symmetric. Find the
blsea [12.9K]

Answer:

a. 0.4772 = 47.72 %

b. 0.7605 = 76.05 %

Step-by-step explanation:

What we must do is calculate the z value for each value and thus find what percentage each represents and the subtraction would be the percentage between those two values.

We have that z is equal to:

z = (x - m) / (sd)

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a. ind the least proportion of data falls between 70 and 80 If the histogram is bell shaped:

So for 70 copies we have:

z = (70 - 70) / (5)

z = 0

and this value represents 0.5

So for 80 copies we have:

z = (80 - 70) / (5)

z = 2

and this value represents 0.9772

p (70 > x > 80) = 0.9772 - 0.5

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b.  Find the proportion of data between 65 and 77

So for 65 copies we have:

z = (65 - 70) / (5)

z = -1

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So for 77 copies we have:

z = (77 - 70) / (5)

z = 1.4

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6 0
4 years ago
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Answer: a=1.16 and b=0.12


Step-by-step explanation:

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The predicted value (a)= given- residual

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For x=4

The given value =3.1

The predicted value = 2.98

Thus

The residual value (b) = given - predicted

\Rightarrow\ b=3.1-2.98\\\Rightarrow\ b=0.12

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