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2 years ago

In this activity, you will draw a scatter plot and the line of best fit to analyze a situation.

Mathematics

1 answer:

evablogger [386]2 years ago

7 0

Answer:

Step-by-step explanation:

The line of best fit in scatter diagram, the variable have positive correlation.

Scatter Diagram is attached :

Download pdf

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Please answer the question. Don't answer if you don't know.

Westkost [7]

the correct answer would be 4 3/4

hope this helps!

lmk if you would like an explanation! :)

4 0

2 years ago

Read 2 more answers

Which of the following best describes a regular polygon when the sum of its interior angles is 1260? A.Nonagon B.Hexagon C.Octag

Nitella [24]

The answer is B. hexagon

4 0

2 years ago

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Which of the following shows 9x^2y - 4x + 3y^3x - 2y^2 written in standard form? A. 9x2y - 4x + 3y3x - 2y2 B. 3y3x - 2y2 + 9x2y

nlexa [21]

D. $3 y^{3}x+9 x^{2} y-2 y^{2} -4x$

Take each term and find the degree of the term and then put them in order from highest to lowest:
$y^{3}x=3+1=4$
$x^{2} y=2+1=3$
$y^{2}=2$
x=1

Remember a letter without an exponent is assumed to be a 1.

Hope that helps.

6 0

3 years ago

Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.9 years with a

Bas_tet [7]

Answer:

5.9 years.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1-p)}{n}}$

In this question:

Mean of the population is $\mu = 5.9$

If a sampling distribution is created using samples of the ages at which 69 children begin reading, what would be the mean of the sampling distribution of sample means?

By the Central Limit Theorem, the same population mean, of 5.9 years.

3 0

2 years ago

A town is replacing a sidewalk that serves eight homes. the length of the sidewalk is 900 feet. laura's property has 60 feet of

Papessa [141]

we know that

by proportion

$\frac{18,000}{900} \frac{\$}{feet}= \frac{x}{60}\frac{\$}{feet} \\\\ 900*x=18,000*60 \\\\x= \frac{18,000*60}{900}\\\\ x= \$1,200$

therefore

<u>the answer is</u>

$\$1,200$

8 0

2 years ago