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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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What is the answer????
strojnjashka [21]

Answer:

I think its J or H

Step-by-step explanation:

I looked at it for a minute and i am pretty sure it J please make me brainliest

7 0
3 years ago
The fox population in a certain region has a relative growth rate of 4% per year. It is estimated that the population in year 20
den301095 [7]

Answer:

a) P(t) = 17900e^{0.04t}

b) The population estimated in 2008 is of 24651.

Step-by-step explanation:

The population growth model may be given by the following exponential function:

P(t) = P_{0}e^{rt}

In which P(t) is the population after t years, P_{0} is the initial population and r is the growth rate.

(A.) Find a function that models the population t years after 2000 (t=0 for 2000)

We have that:

P_{0} = 17900, r = 0.04. So

P(t) = P_{0}e^{rt}

P(t) = 17900e^{0.04t}

(B.) Use the function from part A to estimate the fox population in the year 2008.

2008 is 8 years after 2000. So:

P(8) = 17900e^{0.04*8} = 24650.5

The population estimated in 2008 is of 24651.

3 0
3 years ago
Which product will result in a sum or difference of cubes?
Burka [1]
Its A sorry i didnt show you my work did it on a peice of paper
4 0
3 years ago
If 1.5 yards of red licorice has 45.3 grams of sugar how much sugar is in 5.5 yards of licorice
steposvetlana [31]

Answer:

There is 166.1 grams of sugar in 5.5 yards of licoroce

Step-by-step explanation:

If 1.5 yards of licorice = 45.3 grams of sugar

5.5 yards of licorice = x

Cross multiply:

45.3grams * 5.5yards / 1.5yards

= 249.15 grams/yards / 1.5yards

= 166.1 grams of sugar

4 0
2 years ago
Use the equation of the water level of the river represented by the equation y=-4x + 170, where x represents the
vovangra [49]

Answer:

(0,170)  and (60,-70) and (5, 150)

Step-by-step explanation:

To see if a given point is on the line or not, you just have to enter the x value (first value in the parenthesis) and see if the function returns the correct y value (second number in the parenthesis).

f(x) = -4x + 170

(170,0)  => -4 (170) + 170 = -680 + 170 = 510.  NO, not equal to 0.

(0,170) =>  -4 (0) + 170 = 0 + 170 = 170. YES

(12, 126)  => -4 (12) + 170= -48 + 170= 122. No, not equal to 126.

(50,30)  => -4(50) + 170 = -200 + 170 = 130. No, not equal to 30.

(5, 150)  => -4(5) + 170 = -20 + 170 = 150. YES

(60,-70) => -4(60) + 170 = -240 + 170 = -70.  YES

4 0
3 years ago
Read 2 more answers
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