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gladu [14]
3 years ago
9

according to college survey, 22% of all students work full time. find the mean for the random variable X, the number of students

who work full time in smaples of size 16
Mathematics
1 answer:
pashok25 [27]3 years ago
5 0

Answer:

Mean = 3.52

Step-by-step explanation:

Given

Sample\ Size = 16

Proportion = 22\%

Required

Determine the mean of the proportion

The mean or expected value of a sample is calculated by multiplying the sample size by the proportion as follows;

Mean = n *p

Where

n = 16 -- Sample Size

p = 22\% -- Proportion

So:

Mean = n *p becomes

Mean = 16 * 22\%

Convert 22% to decimal

Mean = 16 * 0.22

Mean = 3.52

<em>Hence, the mean is 3.52</em>

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tamaranim1 [39]

Answer:

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Step-by-step explanation:

You just put the percent in a decimal form(6%-0.06)Then you multiply 200 with 0.06. And the answer you get is the interest

Hope that helps :)

5 0
3 years ago
How many times smaller is 2 × 10^-10 than 4 × 10^-5
natta225 [31]

Answer:

200,000

Step-by-step explanation:

To find how many times smaller is smaller number than greater number, divide greater number by smaller number.

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Smaller number =2\times 10^{-10}

Then

\dfrac{\text{Greater number}}{\text{Smaller number}}\\ \\=\dfrac{4\times 10^{-5}}{2\times 10^{-10}}\\ \\=\dfrac{4}{2}\times \dfrac{10^{-5}}{10^{-10}}\\ \\=2\times \dfrac{1}{10^{-5}}\\ \\=2\times 10^5\\ \\=2\times 100,000\\ \\=200,000

7 0
3 years ago
Erik states that the two cones below have the same volume because of Cavalieri’s principle. 2 cones are shown. The first cone ha
castortr0y [4]

Answer:

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Step-by-step explanation:

Correct on Edge.

8 0
3 years ago
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3 years ago
If f(x) = 8 – 10x and g(x) = 5x + 4, what is the value of (fg)(-2)?
Shkiper50 [21]

Answer:

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Step-by-step explanation:

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