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3 years ago

10

The sample mean for these data is = 3.74 ounces. The dotplot below shows the

1 answer:

ladessa [460]3 years ago

5 0

The margin of error is obtained as the ratio of the standard deviation and the square root of the sample size. It is a measure of the amount of difference that is expected to exist between the actual population value and the value obtained from the sample.

<em>Margin of Error = ±0.01</em>

<u>Margin of Error can be calculated using the relation</u> :

Margin of Error = σ/√n

Margin of Error = 0.228 ÷ √500 = 0.010

Therefore. the margin of error can be interpreted to mean that the value of the mean obtained from the sample is expected to differ from the mean of the population weight by ±0.01

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Geometry math question no Guessing and Please show work

tatyana61 [14]

The point where the two diagonals meet is also the midpoint of both diagonals.

This means that AE = EC . Since we have the value for both segments, we have

$AE = EC \implies 2x = x+2 \implies x = 2$

Since AC = AE + EC, we have

$AE + EC = 2x+x+2 = 3x+2 = 3\cdot 2 + 2 = 6+2 = 8$

4 0

3 years ago

What’s the answer pleazzzzz helplllllll 9m^2-4m-6 by 3m

dlinn [17]

Answer

D. 3m - 4/3 -2/m

<u>Explanation</u>

(9m²-4m-6) ÷ 3m = 9m²/3m - 4m/3m - 6/3m

Carry out the division, each term is divided by 3m.

9m²/3m = 3m

- 4m/3m = -4/3

- 6/3m = - 2/m

Finally you will get,

<em>3m - 4/3 -2/m</em>

5 0

3 years ago

What is the value of x? <br> sin41°=cos x<br> Enter your answer in the box. <br> x = °

creativ13 [48]

Answer:

x = 49°

Step-by-step explanation:

The sine of an angle is equal to the cosine of its complement:

x = 90° -41° = 49°

5 0

3 years ago

Which expressions are equivalent to 1 divided m/6? Check all that apply

jenyasd209 [6]

Answer:

option A, option C, option D

Step-by-step explanation:

a) 1 ÷ m/6

can be written as

$\frac{1}{1}$ ÷ $\frac{m}{6}$

b) sides in (m/6) will change if both has to multiply

c) 1 ÷ m/6

can be written as

1 * 6/m

1( $\frac{6}{m}$ ) and wont make change to answer. so matches with the question.

d)

1 ÷ m/6

1 * 6/m

1 * 6 * $\frac{1}{m}$

6 * $\frac{1}{m}$

6 ÷ m ..therefore true

e)

1 ÷ m/6

1 * 6/m

6/m ....does not match or can be converted to the following so wrong

Therefore A, C, D are correct and B and E is wrong.

6 0

2 years ago

An item has a listing of $40.if the sales tax rate is 4%,how much is the sales tax (in dollars)

dezoksy [38]

Answer:

1.6

Step-by-step explanation:

8 0

3 years ago