Answer:
a) 
b) 
Step-by-step explanation:
Part a
Let A the random variable that represent "The arrival time (minutes) for a daily flight from Boston to New York ". And we know that the distribution of A is given by:
We select our starting point a=0 representing 9:05 AM and the amount of minutes between 9:05 am to 9:55 am are 50 ans for this reason b =50
For ths uniform distribution the expected value is given by 
where X is the random variable, and a,b represent the limits for the distribution. If we apply this for our case we got:
And the variance is given by:
And the standard deviation by definition is just the square root of the variance:
Part b
If we convert 9:30 AM to our scale we know that we have 25 minutes between 9:05 AM and 9:30 AM.
For this case we want to find this probability: 
And we can find this probability using the complement rule like this:
And we can use the cumulative distribution function given by:
And we got:
Answer:
he has one for geting whet and 3 for wearing around
Step-by-step explanation:
awdfcgbh
Answer:
80 blocks
Step-by-step explanation:
since its 5 days of school (mon. , Tues., wed., thurs., fri.,) and he travels 8 blocks to school and from school which would be a total of 16 blocks a day, 5 days of school times 16 blocks a day would be 80 blocks a week (5×16)
Answer:
(6, - 5 )
Step-by-step explanation:
Given a point (x, y ) on the function then the corresponding point on the inverse is (y, x )
Given
(- 5, 6 ) lies on h(x) , then
(6, - 5 ) lies on 
(x)
The denominator must be the same, so just think of the LEAST COMMON MULTIPLE, The LCM here is 8, because you can multiply 4 by 2 to get 8.
so when you multiply, you multiply both on the top and on the bottom, so this would be:
3 x 2 / 4 x 2 = 6 / 8
Now you can add or subtract: 6/8 - 1/8 = 5/8
