Estimate the size of a crowd at a political rally that occupies a rectangular space with dimensions of 500 feet by 600 feet (to
1 answer:
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Answer: a) 0.8665
b) 0.8190
Step-by-step explanation:
Given : The partial pressure of oxygen PaO2 is a measure ofthe amount of oxygen in the blood. Assume that the distribution ofPaO2 levels among newborns has a 38 mmHg and
9 mmHg.
If we take a random sample n= 25 newborns, then using formula , we have
At x= 36
At x= 41
Using table for z-values, the probability that the sample mean will be greater than 36 :
The probability that the sample mean will be between 36 and 41 :-
For example,
They both do have the same denominator, so we can multiply them.
We need to multiply the numerators.
Next, multiply the denominators.
We then get:
1/4
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If the denominators are not the same, find the LCD (Least Common Denominator) of the two fractions. Then, follow above.
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