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mrs_skeptik [129]
3 years ago
11

Why is randomization important when setting up an experiment to answer this research question?

Mathematics
1 answer:
Leokris [45]3 years ago
6 0

Answer:

Answer c !

Step-by-step explanation:

Hope this helps c:

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Determine the area of the figure.
LekaFEV [45]

Answer: 3x - 6 (in^2)

Step-by-step explanation:

base * height / 2

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3 ( 2x - 4) / 2 (in^2)

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Answer:

Step-by-step explanation:

First order from smallest to largest.

70.8, 71.9, 72.1, 82.4, 85.3, 98.1.

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72.1+82.4/2 so The median is 77.25

Range is the largest number minus the smallest number.

85.3-70.8=14.5

Mode is the most repeated number.

Since there are no repeated numbers there is no mode.

Second question:

Again rearrage: 6, 9, 11, 14, 17

In order to make the median 10 you would have to add another 9 becasue

11+9/2 = 10

Third: remove 6 to make 12 the middle number

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3 years ago
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A researcher selects all of the possible samples with n = 8 scores from a population and computes the mean, dividing by n, for e
Nadusha1986 [10]

Answer:

By the Central Limit Theorem, the average value for all of the sample means is 14.

Step-by-step explanation:

We use the central limit theorem to solve this question.

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means of size n can be approximated to a normal distribution with mean \mu and standard deviation, which is also called standard error s = \frac{\sigma}{\sqrt{n}}

If the population mean is μ = 14, then what is the average value for all of the sample means?

By the Central Limit Theorem, the average value for all of the sample means is 14.

3 0
3 years ago
Given: ∠2 ≅ ∠4 Which lines must be parallel?
leva [86]

Answer:

B) p and q

Step-by-step explanation:

If ∠2 ≅ ∠4 then line p and line q must be parallel. ∠2 and ∠4 are corresponding angles, and corresponding angles are congruent.

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