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Blababa [14]
3 years ago
8

Write a function (equation) that can be used to find the relationship between x and y.

Mathematics
2 answers:
Andreas93 [3]3 years ago
8 0
I think it would be y = -3x +2
taurus [48]3 years ago
3 0

Answer:

Step-by-step explanation:

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A sample with a mean of m = 40 and a variance of s2 = 20 has an estimated standard error of 1 point. how many scores are in the
tamaranim1 [39]

The correct option is 20.

The score found for the sample is 20.

<h3>What is Standard error?</h3>

A standard error is a statistic that is applied to test the distribution of data. This metric is comparable to standard deviation. We can calculate the standard error if we know the sample size & standard deviation. It assesses the mean's precision.

Now, according to the question;

Sample mean; \bar{x}=40

Sample variance; s^{2}=20

Thus, s=\sqrt{20}=4.47

Standard error SE = 1

The amount of scores with in sample must be determined here.

The standard error formula is as follows:

S E=\frac{s}{\sqrt{n}}

We might rearrange the formula as follows:

\begin{aligned}\sqrt{n} &=\frac{s}{S E} \\n &=\left(\frac{s}{S E}\right)^{2}\end{aligned}

Substituting the values;

\begin{aligned}&n=\left(\frac{4.47}{1}\right)^{2} \\&n=19.98\end{aligned}

The sample's number of scores n = 19.98 = 20 (round up)

Therefore, the scores are in the sample is 20.

To know more about the Standard error, here

brainly.com/question/14467769

#SPJ4

3 0
1 year ago
M∠IJK=155° and m∠ZJK=35°. Find m/∠IJZ
PtichkaEL [24]
120° because 155-35=120 since IJZ is inside the IJK so you would have to subtract the ZJK from the IJZ.
8 0
2 years ago
A price decreases from $254 to $213.36 . What is the percent of change?
sattari [20]

16% discount, this is because 213.36-254 over the original price (254) times 100% equals -16%

8 0
3 years ago
find the equation of a line that passes through (2 -1) and ia parallel to y=2x+y-4=0 leave your answer in the form of y=mx+c
Oksanka [162]

Answer:

Y=2x-5

Step-by-step explanation:

Parallel m=2

Y=mx+c

-1=2(2)+c

C=-5

7 0
3 years ago
4 + 9 = 11 pleas help
xxMikexx [17]

Answer:

4+9= 13

Step-by-step explanation:

8 0
2 years ago
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