if a windmill is made from 4 congruent polygons what is the area half of the windmill if numbers given 12in 15 in 9 in A.135in B
1 answer:
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Answer:
a)
b)
Step-by-step explanation:
1) 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".
2) Part a
Let X the random variable that represent the duration of a safe dosage of pain relief drug, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability on this way:
And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.
3) Part b
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability on this way:
Amount of wax required for one orange crayon is 0.22 pounds.
Step-by-step explanation:
According to given statement;
22 pounds of wax = 100 orange crayons
For calculating wax for one crayon;
Wax required for one crayon = Total pounds of wax / Total no of crayons
Wax required for one crayon =
Wax required for one crayon =
Amount of wax required for one orange crayon is 0.22 pounds.
Keywords: Crayon, Division.
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