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myrzilka [38]
3 years ago
13

Find the mean, variance and standard deviation of the probability distribution overtime hours 0,1,2,3,4,5,6 probability.015,.070

,.164,.294,.209,.174.074
Mathematics
1 answer:
Alex_Xolod [135]3 years ago
6 0
Okay so the mean is 3, standard deviation is 2.16 and the variance is 4.66.
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You’re correct answer would be : 14 lmk if this is correct if not I’m so SORRY
8 0
3 years ago
-3x + 7y = -16<br> -9x + 5y = 16
otez555 [7]

Answer:

x = -4 y =-4

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

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3 years ago
Which ratio is equivalent to 10:85
Nata [24]
<span>First, find what are the numbers that can be divided to 10 and 85. The numbers 10 and 85 can be divided by 5. 10 divided by 5 is equals to 2 and 85 divided by 5 is equals to 17. Ratio is just like a fraction, you need to reduce its terms if you need to. Let’s say 10:85 is a fraction and since it is obvious that it can be divided by 5, you just need to reduce its term. 10/85 can be reduced into 2/17 which is just the same with ratios 10:85 is equals to 2:17.<span>
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5 0
3 years ago
you are a freelancer and were offered two gigs. one will pay you $25,000today and the other will pay you $5,000 per year over th
guajiro [1.7K]

The preferred gig is the first one since its today's worth is greater than the today's value of the second gig

What is the today's worth of $5000 each year?

The worth of the second gig, which pays $5000 every year for the next 6 years in today's dollar is the present value of all the six annual cash flows discounted using the present value formula of an ordinary annuity as shown below:

PV=PMT*(1-(1+r)^-N/r

PV=present value of annual payments for 6 years=unknown

PMT=annual payment=$5000

r=required return=discount rate=8%

N=number of annual cash flows=6

PV=$5000*(1-(1+8%)^-6/8%

PV=$5000*(1-(1.08)^-6/0.08

PV=$5000*(1-0.630169626883105)/0.08

PV=$5000*0.369830373116895

/0.08

PV=$23,114.40

The fact that the present value of the second option which pays $5000 annually is lesser than the amount receivable immediately, which is $25,000, hence, the first gig is preferred

Find out more about ordinary annuity on:brainly.com/question/13369387

#SPJ1

6 0
1 year ago
Find the value: <br><br> cos -1 ( - √3/2 )
Natasha2012 [34]

Answer:

The value is undefined.

7 0
3 years ago
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