Answer:
25/5
Step-by-step explanation:
i think

×

=

You then divide the numerator(top) by the denominator(bottom)

=

Your answer is
1.5 minutes = 90 second
The probability density function is

so the probability of interest is


Answer:

Step-by-step explanation:
The average is 7.5 hours of sleep each night.
There are 365 nights in 1 year.


