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Nataliya [291]
4 years ago
10

6.8 (-0.5) - 2 (5.8)

Mathematics
2 answers:
Zina [86]4 years ago
6 0

Answer:

- 15

Step-by-step explanation:

lukranit [14]4 years ago
4 0

Answer:

-15

Step-by-step explanation:

Step  1  :

           29

Simplify   ——

           5  

Equation at the end of step  1  :

  68     5      29

 (——•(0-——))-(2•——)

  10    10      5  

Step  2  :

           1

Simplify   —

           2

Equation at the end of step  2  :

  68         1      58

 (—— • (0 -  —)) -  ——

  10         2      5  

Step  3  :

           34

Simplify   ——

           5  

Equation at the end of step  3  :

  34   -1     58

 (—— • ——) -  ——

  5    2      5  

Step  4  :

Adding fractions which have a common denominator :

4.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

-17 - (58)     -15

——————————  =  ———

    5           1

Hope this helps.

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he number of surface flaws in plastic panels used in the interior of automobiles has a Poisson distribution with a mean of 0.02
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Answer:

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b) 13.53\%

c) 27.06%

Step-by-step explanation:

Since a car has 10 square feet of plastic panel, the expected value (mean) for a car to have one flaw is 10*0.02 = 0.2  

If we call P(k) the probability that a car has k flaws then, as P follows a Poisson distribution with mean 0.2,

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So, the probability that a car has no flaws is 98.01%

b)

Ten cars have 100 square feet of plastic panel, so now the mean is 100*0.02 = 2 flaws every ten cars.

Now P(k) is the probability that 10 cars have k flaws and  

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Here, we are looking for P(1) with P defined as in b)

P(1)= \frac{2^1e^{-2}}{1!}=2e^{-2}=0.2706=27.06\%

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