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masya89 [10]
3 years ago
7

PLEASE SCREENSHOT AND MARKUP FOR 40 POINTS

Mathematics
2 answers:
alukav5142 [94]3 years ago
8 0

Answer:

That seems hard sorry i couldn't help

Step-by-step explanation:

ololo11 [35]3 years ago
3 0

Answer:

wanna be friendz and can i have brainliest please

Step-by-step explanation:

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A sample of 50 observations is taken from an infinite population. The sampling distribution of : a.is approximately normal becau
Korvikt [17]

Answer:

a.is approximately normal because of the central limit theorem.

Step-by-step explanation:

The central limit theorem states that if we have a population with mean μ and standard deviation σ and we take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed.

For any distribution if the number of samples n ≥ 30, the sample distribution will be approximately normal.

Since in our question, the sample of observations is 50, n = 50.

Since 50 > 30, then <u>our sample distribution will be approximately normal because of the central limit theorem.</u>

So, a is the answer.

3 0
3 years ago
5. Nobu ate of one pizza, Brandi ate half
iren2701 [21]

Answer:

Step-by-step explanation:

Is a bien de su coma

7 0
3 years ago
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7th grade math I need some help
brilliants [131]

Answer:

$33.60

Step-by-step explanation:

First we take 80% of $40.

1. $40 * 0.80 = $32

Next we take 105% of $32.

2. $32 * 1.05 = $33.60

4 0
3 years ago
Given the parent function
lozanna [386]

Answer:

Option c is right.

Step-by-step explanation:

Given is a parabola y =x^2

From that transformation is done to get parabola as

y =(0.2x)^2

We find that instead of x here we use 0.2x

i.e. New x = 5 times old x

Hence there is a horizontal expansion of scale factor 5.

We can check with any point also

When y =4, x=2 in the parent graph

But when y =4 , we have x = 10 in the new graph

i.e. there is a horizontal expansion of scale factor 5.

7 0
3 years ago
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Find the missing side of the right triangle
vlada-n [284]

Answer:

a {}^{2}  + b {}^{2}  = c {}^{2}  \\ b {}^{2} =  \sqrt{c {}^{2}   -  a {}^{2} }  \\ b =  \sqrt{14 {}^{2}   - 3 {}^{2}  }  \\ b =  \sqrt{196 -  9}  \\ b =  \sqrt{187}  \\ b = 13.7

I hope this help

6 0
3 years ago
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