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saul85 [17]
3 years ago
10

Consider the probability distribution of x, where x is the number of job applications completed by a college senior through the

school's career center. x 0 1 2 3 4 5 6 7 p(x) 0.002 0.011 0.115 0.123 0.144 0.189 0.238 0.178 we collect a random sample of 1000 college seniors who complete job applications through the career center. based on the probability distribution, which result would be surprising?
Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0
The expected number out of 1000 selected college seniors that completed 1 job application through the career centers is given by 0.011 x 1000 = 11 which is close to 14.

The expected number out of 1000 selected college seniors that completed 2 job application through the career centers is given by 0.115 x 1000 = 115 which is far away from 15.

The expected number out of 1000 selected college seniors that completed 3 job application through the career centers is given by 0.123 x 1000 = 123 which is close to 130.

Therefore, the result that would be suprising is "15 seniors completed 2 job applications through the career center."
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In one day, The Tool Shed rented out 25 self-propelled and riding mowers for a total fee of $900. The dolly rental cost was $20
masha68 [24]

They rented out 5 self-propelled mowers and 20 riding mowers.

Data;

  • Total number of tool rented out = 25
  • Cost of tools rented = $900

<h3>System of Equations</h3>

To solve this problem, we have to write a system of equations to represent the problem.

since we have

  • x = self - propelled mower
  • y = riding mowers

Let's write equations with these variables.

x+y = 25...equation (i)\\20x+40y = 900...equation(ii)

From equation (i)

x+y= 25\\x = 25 - y...equation(iii)

Put equation (iii) into equation (ii)

20x+40y=900\\x = 25-y\\20(25-y)+40y=900\\\\500-20y+40y=900\\500+20y=900\\20y=900-500\\20y=400\\\frac{20y}{20}=\frac{400}{20}\\ y=20

Let's substitute the value of y into equation(i)

x+y =25\\x+20 = 25\\x = 25 - 20\\x = 5

From the calculations above, they rented 5 self-propelled mowers and 20 riding mowers.

Learn more on system of equations here;

brainly.com/question/13729904

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How much is 85cm longer than 1m ?
balandron [24]

1 meter has 100 CENTImeters.

now, 85cm is not longer than 1 meter clearly, because 100 cm > 85 cm.

so one can say, that is 1 meter is longer by 15cm instead.

100 -  85 = 15.

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3 years ago
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Can someone please help with number 2?
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Step-by-step explanation: hope this help

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