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3 years ago

ANSWER PLSNO LINKS AT ALL

Mathematics

1 answer:

lianna [129]3 years ago

4 0

Answer:

David (1), Billy (2), Allen (5), Conner (7).

Step-by-step explanation:

Use M.A.D to find variability. Basically the higher the M.A.D, the greater the variability. And I don't know for sure, so if wrong tell me.

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What is the answer for the equation n+11=2n

Alexeev081 [22]

$n+11=2n\\
2n-n=11\\
n=11$

5 0

3 years ago

A = 100(1+r)^4 Expand the right of this formula. appreciate your help with an explanation

suter [353]

Answer:

100r^4 + 400r^3 + 600r^2 + 400r + 100

Step-by-step explanation:

Expanding ( r + 1 )^4 gives :-

r^4 + 4r^3 + 6r^2 + 4r + 1

So multiplying 100 with r^4 + 4r^3 + 6r^2 + 4r + 1 gives :-

100r^4 + 400r^3 + 600r^2 + 400r + 100

4 0

3 years ago

Let us suppose we have data on the absorbency of paper towels that were produced by two different manufacturing processes. From

maksim [4K]

Answer:

The 95% CI for the difference of means is:

$-155.45 \leq \mu_1-\mu_2 \leq -44.55$

Step-by-step explanation:

The question is incomplete:

"Find a 95% confidence interval on the difference of the towels mean absorbency produced by the two processes. Assumed that the standard deviations are estimated from the data. Round to two decimals places."

Process 1:

- Sample size: 10

- Mean: 200

- S.D.: 15

Process 2:

- Sample size: 4

- Mean: 300

- S.D.: 50

The difference of the sample means is:

$M_d=M_1-M_2=200-300=-100$

The standard deviation can be estimated as:

$\sigma_d=\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}\\\\\sigma_d=\sqrt{\frac{15^2}{10}+\frac{50^2}{4}} =\sqrt{22.5+625}=\sqrt{647.5}=25.45$

The degrees of freedom are:

$df=n_1+n_2-2=10+4-2=12$

The t-value for a 95% confidence interval and 12 degrees of freedom is t=±2.179.

Then, the confidence interval can be written as:

$M_d-t\cdot \sigma_d\leq \mu_1-\mu_2 \leq M_d+t\cdot \sigma_d\\\\-100-2.179*25.45\leq \mu_1-\mu_2 \leq -100+2.179*25.45\\\\-100-55.45 \leq \mu_1-\mu_2 \leq -100+55.45\\\\ -155.45 \leq \mu_1-\mu_2 \leq -44.55$

8 0

3 years ago

3) At a school several teachers were holding a contest to see which class could earn the most trivia points. Mrs. Clawson's clas

Snezhnost [94]

Answer:

Mean: 89

Median: 90

Mode: 94

Range: 12

5 0

3 years ago

What number is less than 15.22 Enter your answer as a decimal in the box

Harlamova29_29 [7]

Answer:

15.10 or -15.22

Step-by-step explanation:

3 0

3 years ago

ANSWER PLSNO LINKS AT ALL ​

ANSWER PLSNO LINKS AT ALL