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KatRina [158]
3 years ago
10

Which statements must be true to model a data set using a normal distribution?

Mathematics
2 answers:
zalisa [80]3 years ago
4 0

Answer:

The sample must be randomly selected.

The sample size, n, must be at least 30.

Step-by-step explanation:

Plato

Rzqust [24]3 years ago
3 0

Answer:

The sample must be randomly selected.

The sample size, n, must be at least 30.

Step-by-step explanation:

Just took the test

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Answer:

You are 89 years old.

Step-by-step explanation:

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Hope this helps you! :)

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2 years ago
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serious [3.7K]

Answer:

I believe the answer is

y =  \frac{2}{3} x + 1

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Step-by-step explanation:

Hope this helps!

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3 years ago
Classify the following expression by degree and term: x2y − 7xy + xyz + x
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3rd degree polynomial with 4 terms
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2 years ago
Read 2 more answers
Anyone know how to do this?
Lera25 [3.4K]

Answer:

Part A) 25

Part B) 225

Step-by-step explanation:

Part A

The slope of the graph gives us the mile per gallon of the car.

Recall that the slope of the graph is rise over run.

m =  \frac{200}{8}  = 25

Therefore car gets 25 miles per gallon

Part B) Since we know the slope of the direct variation line, we substitute into y=kx to get:

y = 25x

To find the number of miles the car travels using 9 gallons, we substitute x=9 to get:

y = 25 \times 9

This gives us 225 miles

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Answer:

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Step-by-step explanation:

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