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3 years ago

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densk [106]3 years ago

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? Join watttttt......?????

nata0808 [166]3 years ago

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Answer:

join what tho

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A distance AB is observed repeatedly using the same equipment and procedures, and the results, in meters, are listed below: 67.4

skad [1K]

Answer:

a) $\bar X =\frac{67.401+67.400+67.402+67.396+67.406+67.401+67.396+67.401+67.405+67.404}{10}=67.401$

b) The sample deviation is calculated from the following formula:

$s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And for this case after replace the values and with the sample mean already calculated we got:

$s=0.0036$

If we assume that the data represent a population then the standard deviation would be given by:

$\sigma=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n}}$

And then the deviation would be:

$\sigma =0.00319$

Step-by-step explanation:

For this case we have the following dataset:

67.401, 67.400, 67.402, 67.396, 67.406, 67.401, 67.396, 67.401, 67.405, and 67.404

Part a: Determine the most probable value.

For this case the most probably value would be the sample mean given by this formula:

$\bar X =\frac{\sum_{i=1}^n X_i}{n}$

And if we replace we got:

$\bar X =\frac{67.401+67.400+67.402+67.396+67.406+67.401+67.396+67.401+67.405+67.404}{10}=67.401$

Part b: Determine the standard deviation

The sample deviation is calculated from the following formula:

$s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And for this case after replace the values and with the sample mean already calculated we got:

$s=0.0036$

If we assume that the data represent a population then the standard deviation would be given by:

$\sigma=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n}}$

And then the deviation would be:

$\sigma =0.00319$

3 0

4 years ago

You spend $25 to buy supplies for making necklaces, and plan on selling

zhenek [66]

,jhAnswer:

yo would at least have to sell 8 necklaces in order to make a profit

Step-by-step explanation:

all you needed to do was divide this question and then find the quantum and lowest lcf

5 0

3 years ago

Read 2 more answers

If f(x) is the height, in cm, of a sunflower plant that is x days old, which of the following statements best describes the mean

mario62 [17]

Answer:

Step-by-step explanation:

We are given f(x) is height in cm while x is days old.

We are also given f(60)=210.

If you compare f(60) to f(x) you should see that x is 60 so we have the sunflower is 60 days old. Since f(60)=210, then you have the height of the sunflower is 210 cm tall.

7 0

3 years ago

2. How many solutions does this system of equations have? *<br> y = 5x – 2<br> y = 5x + 7

Yuliya22 [10]

Answer:

No solution.

Step-by-step explanation:

${ \sf{y = ±∞ \: \: and \: \: x = ±∞}}$

4 0

3 years ago

Read 2 more answers

(x2 + 10x + 21) - (x + 7)

rusak2 [61]

Answer:

11x+14

Step-by-step explanation:

(2x+10x+21)-x-7 = 12x+21-x-7 = 11x+14

3 0

3 years ago

32336457790000join ​pls​

32336457790000join pls