How many gallons of gasoline will it take to mow one lawn if you maintain the rate 1/2 gallon of gasoline per 1/4 lawn mowed

answer: a)

b)  

c)   probability of getting at least two tails is given by

step-by-step explanation:

since we have given that

number of coins that are flipped = 3

let the outcome of head be "h"

let the outcome of tail be "t"

a) make an organized list of the sample space for this experiment.

sample space will be given by

b)   which of the outcomes represent the event "at least two tails"

number of events in which there is "atleast two tails" is given by

c) what is the probability that there will be at least two tails?

probability of getting at least two tails is given by