Independent variable
which is the x axis the “horizontal axis
Answer:
And using the normal standard table or excel we find the probability:
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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".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
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:
Where
and
Since the distribution for X is normal then, the distribution for the sample mean
is given by:
We select a sample of n =50 people. And we want to find the following probability
And using the normal standard table or excel we find the probability:
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Answer:
Hello! answer: x = 85
Step-by-step explanation:
Triangles add up to 180 degrees 27 + 68 = 95
180 - 95 = 85 therefore x = 85
Answer:
or 1.414213
Step-by-step explanation:
Use the distance formula to determine the distance between the two points.
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d = distance
= coordinates of the first point
= coordinates of the second point