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3 years ago

Median of 3,17,17,11,8,13,5,18

Mathematics

2 answers:

DiKsa [7]3 years ago

8 0

11 and 8 are in the middle. So you need to add them to together to get 19

-Dominant- [34]3 years ago

7 0

I believe that the answer is 13

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The student setup 30 games booths;the teachers also setup some. If 5/6 of the game booths were set up by the students, how many

Ket [755]

25 were set up by the students

6 0

3 years ago

Y-intercept is 100 and slope is 5. Partner gave example: Younger brother had 100 small building blocks, but lost 5 of them every

ArbitrLikvidat [17]

Since he lost 5 every month, it should be that the slope is -5, not 5, he is not gaining 5 every month

yint is 100 and slope is -5 would be correct
b=-5m+100
b=number of blocks he has after m months

3 0

3 years ago

Determining Whether a Difference Is Statistically

SCORPION-xisa [38]

Using the z-distribution, it is found that:

The 95% confidence interval is of -1.38 to 1.38.

The value of the sample mean difference is of 1.74, which falls outside the 95% confidence interval.

<h3>What is the z-distribution confidence interval?</h3>

The confidence interval is:

$\overline{x} \pm zs$

In which:

$\overline{x}$ is the difference between the population means.

s is the standard error.

In this problem, we have a 95% confidence level, hence $\alpha = 0.95$ , z is the value of Z that has a p-value of $\frac{1+0.95}{2} = 0.975$ , so the critical value is z = 1.96.

The estimate and the standard error are given by:

$\overline{x} = 0, s = 0.69$

Hence the bounds of the interval are given by:

$\overline{x} - zs = 0 - 1.96(0.69) = -1.38$

$\overline{x} + zs = 0 + 1.96(0.69) = 1.38$

1.74 is outside the interval, hence:

The 95% confidence interval is of -1.38 to 1.38.

The value of the sample mean difference is of 1.74, which falls outside the 95% confidence interval.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ2

6 0

2 years ago

Use the compound interest formula to determine the final value of the following amount. $1900 at 10.4% compounded monthly for 4.

nikklg [1K]

Answer:

$3027.80

Explanation:

The compound interest formula is the following.

$A=P(1+\frac{r}{n})^{nt}$

where

A = final amount

P = principle amount

r = interest rate / 100

n = number of compounds per interval

t = time interval

Now in our case,

A = unknown

P = $1900

r = 10.4/100

n = 12 months / year ( because the interest is compounded monthly)

t = 4.5 yrs

Therefore, the compound interest formula gives

$A=1900(1+\frac{10.4/100}{12})^{12*4.5}$

Using a calculator, we evaluate the above to get

$\boxed{A=\$3027.80}$

which is our answer!

8 0

1 year ago

A wire is to be attached to support a telephone pole. Because of surrounding buildings, sidewalks, and roadways, the wire must

ad-work [718]

This situation is a right triangle with the base measuring 18 and the hypotenuse 22. We are looking for x, the height up the pole that the wire is going to be attached to. We will use Pythagorean's Theorem to find the missing length. $22^2-18^2=x^2$ and $484-324=x^2$ . x^2 = 160 so x = $4 \sqrt{10}$ or 12.65 feet

3 0

3 years ago