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kolbaska11 [484]
3 years ago
9

Which of the following is NOT a requirement to conduct a goodness-of-fit test? Question 1 options: a) For each category, the obs

erved frequency is at least 5. b) The sample data consist of frequency counts for each of the different categories c) The sample is simple random sample. d) For each category, the expected frequency is at least 5.
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
4 0

Answer:

The answer is A.) For each category, the observed frequency is at least 5.

Step-by-step explanation:

Just took the test.

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Simplify 8+6 over 7 - 3+1 over 2
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First, let's make an expression!

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\frac{8+6}{7-3} +\frac{1}{2}

Hope this is what you meant!

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For Zoey's lemonade recipe, 7 lemons are required to make 14 cups of lemonade. At what rate are lemons being used in lemons per
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3 years ago
​The length of the escalator is 30 feet and the distance between the floors is 12 feet. ​ ​Find the distance from the base of th
ss7ja [257]

Answer:

Distance from the base of the escalator to the point on the first floor directly below the top of the escalator = 27.5 feet

Step-by-step explanation:

Given:

Length of escalator = 30 feet

Distance between the floors = 12 feet

To find the distance from base of escalator to the point on the first floor directly below the top of the escalator  we will create the figure for the situation.

From the figure we see that a triangle ABC is formed.

We see that the Δ ABC is a right triangle.

Applying Pythagorean theorem for right triangle ABC to find the missing side.

AB^2=BC^2+AC^2

AB = 30 feet

BC = 12 feet

Plugging in values in the theorem.

30^2=12^2+AC^2

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900-144=144+AC^2-144

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Taking square root both sides.

\sqrt{756}=\sqrt{AC^2}

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∴ AC=27.5 feet.

∴ Distance from the base of the escalator to the point on the first floor directly below the top of the escalator = 27.5 feet

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