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2 years ago

Please help me with the question 15 POINTS

Mathematics

1 answer:

amm18122 years ago

3 0

Each of these questions is substantially the same as the others. The answer is, "it depends" on what you want a random sample of. If you want random people in the country, you will not get that from these protocols.

If you want random people that meet certain criteria (have phones, shop in eyeglasses stores, use specific venues), then these protocols will deliver.

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I’m another normally distributed test score is 80 and the standard deviations is 10. How common are values in the less than 60?

lord [1]

Answer:

The probability of obtaining a score less than 60 is 2.28%

It happens 2 out of 100 times.

Step-by-step explanation:

If the mean μ = 80 and the standard deviation σ = 10, then we need to find the probability that an X value is less than 60.

Then we find

$P(X$

To find this probability we use the Z statistic.

$Z = \frac{X- \mu}{\sigma}$

$P(\frac{X- \mu}{\sigma}$

$P(Z$

This is the same as

$P(Z> 2)$

We look for this value in the table for the normal distribution of right queue and we have:

$P(X 2) = 0.02275$

The probability of obtaining a score less than 60 is 2.28%

It happens 2 out of 100 times.

6 0

2 years ago

Write the equation of the linear relationship in slope-intercept form, using decimals as needed.

d1i1m1o1n [39]

Ok so look for the change between x and y.

7 0

2 years ago

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Answer to this question

777dan777 [17]

Answer:

3/2

Step-by-step explanation:

Rewrite the equation by swapping x by y.

6 0

2 years ago

An 8-oz bottle of ketchup costs $1.39.

inna [77]

First, you need to find how much an ounce costs. To do that, you have to divide 1.39 by 8. Then you get about 0.17. Now, you multiply 0.17 by 14, and get the answer of 2.38. Therefore, a 14-oz bottle of ketchup costs $2.38.

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3 years ago

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There are 45 students in Lisa's class. 35 of the students are boys and rest are girls

geniusboy [140]

If the question is how many students are girls, than it's ten(10).

8 0

2 years ago