An airline charges the following baggage fees: $25 for the first bag and $35 for the second. suppose 54% of passengers have no checked luggage, 34% have one piece of checked luggage and 12% have two pieces. we suppose a negligible portion of people check more than two bags.
(a) build a probability model, compute the average revenue per passenger, and compute the
corresponding standard deviation.
(b) about how much revenue should the airline expect for a flight of 120 passengers? with what
standard deviation? note any assumptions you make and if you think they are justified.

The average revenue per passenger = E(x) = $15.70

b)$1,884 ± $20

Step-by-step explanation:

a)

Refer  attached fig for probability model,

i)The average revenue per passenger = E(x) = $15.70

Standard Deviation =

ii)  average revenue per passenger = E(x) = $15.70

b) Revenue should the airline expect for a flight of 120 passengers

revenue = 120 * $15.70 = $1,884 ± $20 (or 19.95 rounded up)

use same σ

answer: -8.2562234e+13

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc