Answer:
4.605170185988091
Step-by-step explanation:
ln 100 = 4.605170185988091
e^4.605170185988091 = 100
Answer:
Step-by-step explanation:
Given
---- the average
-- standard deviation
Required
The 1st to 3rd quartile
Since the distribution is normal, then:
i.e.
So, we have:
Rewrite Median as Q2
To solve for Q1 and Q3, we use the following formula
Multiply both sides by 2
Substitute
Also, we have:
----- quadrants are equidistant
Rewrite as:
Substitute:
Make Q3 the subject
Substitute in
Collect like terms
Divide by 2
Substitute in
Her average rate is .615 miles per minute or about 37 miles per hour