3 years ago

Which of the following could be the number shown on the number line?

Mathematics

1 answer:

Margaret [11]3 years ago

3 0

Top is right. The top comment

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Consider a normal population with the mean of 40 and standard deviation of 10. A random sample of was selected: 39.2, 45.7, 27.4

Tems11 [23]

Answer:

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

And replacing we got:

$\bar X= 38.91$

And we can find the bias with this formula:

$Bias= \bar X -\mu$

And replacing we got:

$Bias = 38.91 -40 = -1.09$

Step-by-step explanation:

For this problem we know that the random variable of interest follows this distribution:

$X \sim N(\mu =40, \sigma= 10)$

And we have the following random sample given:

39.2, 45.7, 27.4, 25.9, 25.1, 46.3, 42.9, 49.0, 40.6, 47.0

And we can calculate the sample mean with the following formula:

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

And replacing we got:

$\bar X= 38.91$

And we can find the bias with this formula:

$Bias= \bar X -\mu$

And replacing we got:

$Bias = 38.91 -40 = -1.09$

5 0

3 years ago

Look at the figure below:

xeze [42]

Answer:

You get 80 degrees

Step-by-step explanation:

50 plus 50 gets you 100. 180-100 80

8 0

4 years ago

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Please help thank you

Contact [7]

Answer:

TRUE

Step-by-step explanation:

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2 years ago

Eight divided by three hundred forty four

adell [148]

your answer for 344 divided by 8 is 43

7 0

4 years ago

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Evaluate x+1 when x = 2.5

lina2011 [118]

Plug in 2.5 for x and you get

2.5+1 which equals 3.5

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3 years ago