Different roads take different amounts of time to drive. Assume that the times for driving each road are independent and measurements excluded rush hour. Below are the average times and standard deviations for 6 roads.

Road	Average time (mins)	SD (mins)
A	8.6	1.1
B	9.2	2.3
C	10.1	1.0
D	8.7	1.5
E	4.5	1.8

What is the expected total amount of time (in minutes) to drive roads A, C, and D?

Expected time = Answer to two decimal places as needed.

What is the standard deviation for the distribution of time (in minutes) to drive roads A, C, and D?

SD for distribution of time = Answer to two decimal places as needed.

Adriana's commute from home to work follows road B, then E. In rush hour, the driving times will be 1.5 times the usual length.

What is the expected amount of time it will take for Adriana to drive from home to work during rush hour?

Expected value = Answer to two decimal places as needed. What is the standard deviation (in minutes) for Adriana trip to from home to work during rush hour?

SD for distribution of time = Answer to two decimal places as needed.