Because not all airline passengers show up for their reserved seat, an airline sells 125 tickets for a flight that holds only 124 passengers. the probability that a passenger does not show up is 0.12, and the passengers behave independently. round your answers to two decimal places (e. g. 98.76). (a) what is the probability that every passenger who shows up gets a seat? (b) what is the probability that the flight departs with empty seats? (c) what are the mean and (d) standard deviation of the number of passengers who show up?

i got 86 for this

hope this !

if you need an explanation just ask

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.