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Mathematics

1 answer:

Aleks04 [339]3 years ago

5 0

Answer:<em> 20 degrees</em>

Step-by-step explanation:

Find the 180 (degrees angle)= angle CD

180 degrees-110 degrees= 70 degrees

By using the OAT (opposite angle theorem), the opposite of the angle OD (you know what i mean) will be 70 degrees too. So, Angle BO is 70 degrees too. We know the right angle there is 90 degrees because of the square sign so, create another 180 degrees angle but subtract 160 degrees (70+90) from 180 degrees which is 20 degrees.

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Barron's reported that the average number of weeks an individual is unemployed is 17.5 weeks. Assume that for the population of

Olin [163]

Answer:

$P(16.5$

And using the normal standard table or excel we find the probability:

$P(-1.768< Z< 1.768) = P(Z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

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Solution to the problem

Let X the random variable that represent the avergae number of weeks an individual is unemployed of a population, and for this case we know the distribution for X is given by:

$X \sim N(17.5,4)$