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zvonat [6]
3 years ago
9

What is a variable of 5xy

Mathematics
1 answer:
Musya8 [376]3 years ago
7 0

Answer:

it's 2

Step-by-step explanation:

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a teacher wants to know how much she can predict a student reading level in a given school district. the table shows the grade a
Rus_ich [418]
The correct answer for this question is this one: "B. 90.7%" The percent of variation in the reading level can be explained by changes in the grade level is <u>90.7%</u>
<span>You have to compute the coefficient of correlation and then use a formula to get the explained variation.
</span>
Hope this helps answer your question. Should you have more questions, do not hesitate to post in brainly.
These are the following choices:
<span>A. 74.7%
B. 90.7%
C. 82.4%
D. 86.6%</span>
3 0
3 years ago
A) What is the population of interest? Approximately, how many people are in the population of interest? (Recall, the definition
salantis [7]

The What is the population of interest are:

  • GMC students
  • People who own Cars in Macon, GA.
  • People who eat oatmeal in Georgia.

The data collection method according to the group below

  1. Survey
  2. Survey
  3. Experiment

<h3>What is the statistical studies about?</h3>

The best data collection method for the first one oatmeal  and GMC students is survey because the population is large and opinions may differ.

The best data collection method for the cars  is Experiment as one needs to study the cars that pass the red lights

For one of the three studies, a census is possible in the first one because the study population is the Georgia which is very large.

For the two studies the one that a census is not needed is GMC students and cars at red light because the population is not too big.

Based on the study I will use 500 people, 200 students, or 300 cars and the  sampling technique would be Systematic sampling, Simple random sampling and Judgmental/purposive sampling.

A  Simple random sampling is known to be the easiest method of selecting a sample as every member is known to have an equal chance of being selected in the sample.

See the other part of the question below

Write a reply

Consider the following statistical studies:

1. A study (in Georgia) of the effect of eating oatmeal on lowering cholesterol.

2. A study of current GMC students next career move after graduating or transferring from GMC.

3. A study of how many cars run the red light at a certain intersection in Macon, GA.

Learn more about statistical studies from

brainly.com/question/15525560

#SPJ1

8 0
2 years ago
The graph represents the distribution of the number of questions answered correctly on a 50-question math test.
leva [86]

Answer:

The answer I believe is 4.

Step-by-step explanation:

3 0
3 years ago
Alice spins a spinner and rolls a number cube labeled 1-6. the spinner and number cube are shown.
Delicious77 [7]

Answer:

Step-by-step explanation:

first count up the numbers on the spinner and the die cut out the number till get the number but i will guess 2

8 0
3 years ago
Listed below are the top 10 annual salaries​ (in millions of​ dollars) of TV personalities. Find the​ range, variance, and stand
Fed [463]

Answer:

1. $29.4 million

2. 145.24

3. 145.24

4. 12.05

5.  D. ​No, because the sample is not representative of the whole population.

Step-by-step explanation:

1. The computation of range of the sample data is shown below:-

Range of the sample data = Maximum value - Minimum value

= 42 - 12.6

= $29.4 million

2. For the computation of variance of the sample data first, we need to find out the mean which is shown below:-

Mean = \frac{(42 + 40 + 39 + 32 + 21 + 18 + 16 + 14 + 13.7 + 12.6)  }{10}

= 24.83

The Variance of the sample data

= \frac{(42 - 24.83)^2 + ..... + (12.6 - 24.93)^2}{10 - 1}

= \frac{1307.161}{9}

=  145.24

3. The computation of the standard deviation of the sample data is shown below:-

The Standard deviation of the sample

= \sqrt{145.24}

= $12.05155592

or

$12.05

4. No, as the sample does not represent the whole population.

8 0
3 years ago
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