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dimulka [17.4K]
3 years ago
11

Ramona reads 18 books from the library each month for y months in a row. Write an expression to show how many books Ramona read

in all. Then, find the number of books Ramona read if she read for 10 months.
Mathematics
1 answer:
Licemer1 [7]3 years ago
7 0

Answer:

The answer to your question is:

Step-by-step explanation:

Data

Books read = 18

y = number of months

a ) Expression

                                  R(y) = 18 y

b) Number of books read after 10 months

     

                                R(10) = 18(10)

                               R(10) = 180 books

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Consider a value to be significantly low if its z score less than or equal to minus−2 or consider a value to be significantly hi
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Answer:

If the weight is higher than 5.8886 gr would be considered significantly high

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Previous concepts

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Solution to the problem

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

X \sim N(5.75241,0.06281)  

Where \mu=5.75241 and \sigma=0.06281

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

For the case when z =-2 we can do this:

-2 = \frac{X-5.75241}{0.06281}

And if we solve for X we got:

X = 5.75241 -2*0.06281 =5.6121

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2 = \frac{X-5.75241}{0.06281}

And if we solve for X we got:

X = 5.75241 +2*0.06281 =5.8886

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