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steposvetlana [31]
3 years ago
6

Please help the question is in the picture

Mathematics
1 answer:
Oduvanchick [21]3 years ago
7 0

Answer: C

Step-by-step explanation:

You need to substitute x for 2.5. After that, multiply 101 and 2.5 to get 252.5. Then, add 252.5 and 207.85 to get 460.35.

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How to use the results of part (b) and appropriate computation formulas to compute the sample variances s2 and sample standard d
anygoal [31]
s^2=\displaystyle\sum\frac{(x-\bar x)^2}{n-1}=\frac1{n-1}\sum(x^2-2x\bar x+{\bar x}^2)=\frac{\displaystyle\sum x^2-2\bar x\sum x+{\bar x}^2}{n-1}

where \bar x=22 is the mean. Since

\sum x^2=2568
\sum x=110

you have variance

s^2=\dfrac{2568-2(22)(110)+22^2}{5-1}=37

and so the standard deiviation is

s=\sqrt{37}\approx6.083
7 0
4 years ago
A new ride being built at an amusement park includes a vertical drop of 71.6 meters. Starting from rest, the ride vertically dro
Alina [70]

Step-by-step explanation:

<h2>2.3 x 107 J is your correct Answer</h2>
6 0
3 years ago
According to the tables used by insurance companies, a 48-year old man has a 0.169% chance of
yarga [219]

Answer:

The expected value for the person buying the insurance is of -$48.

Step-by-step explanation:

Expected value:

0.169% = 0.00169 probability of earning the death benefit of $100,000, subtracting 217, 100000 - 217 = $99,783.

100 - 0.169 = 99.831% = 0.99831 probability of losing $217.

What is the expected value for the person buying the insurance?

E = 0.00169*99783 - 0.99831*217 = -48

The expected value for the person buying the insurance is of -$48.

5 0
3 years ago
The 20,000 seats available at Madison Square Garden for a popular concert sold out in just 12
Lina20 [59]

Answer:

8333 tickets.

Step-by-step explanation:

If you take 20,000 and divide it by 12 you get 1666.66

You then take 1666.66 and times it by 5.

The answer you get is 8333.33 but the instructions say to round it to the nearest whole number which would be 8333. Hope this helps!!

4 0
3 years ago
Determine perimeter
ruslelena [56]

Answer:

10.16 cm.................

....

6 0
3 years ago
Read 2 more answers
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