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Ray Of Light [21]
4 years ago
9

Can someone help me with this question for statistics please.... this is due tomorrow The following questions are based on the s

tatistical graph, shown in Hans Rowling’s 200 countries, 200 years, 4 minutes, that displays life expectancy vs wealth. In 1810 what was the general life expectancy?
A.30 years B.40 years C.50 years D.60 years
Mathematics
1 answer:
MakcuM [25]4 years ago
4 0

Answer: A. 30 years

Step-by-step explanation:

Watching the video he explains life expectancy was very harsh. It shows all life expectancy’s were below 40 and rather closer to the average 30 years of age. At best you can hope to live to 40. If it is not A I would be very surprised. Good luck

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The mean of a normal probability distribution is 500 and the standard deviation is 10. about 95 percent of the observations lie
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Answer:

So about 95 percent of the observations lie between 480 and 520.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

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4 years ago
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4 years ago
Simplify.<br> 3^2+ (9-8/2)
solmaris [256]

Hi there! Hopefully this helps!

-----------------------------------------------------------------------------------------------------------

Answer: 14.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

First we calculate <u>3 to the power of 2</u> and get 9.

|

\/

9 + 9 - \frac{8}{2} = 14.

Now we add<u> 9 + 9</u> to get 18.

18 - \frac{8}{2} = 14.

Then, we<u> divide 8 by 2</u> to get 4.

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3 0
3 years ago
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