Let X be a discrete random variable with geometric distribution.
Let x be the number of tests and p the probability of success in each trial, then the probability distribution is:
P (X = x) = p * (1-p) ^ (x-1). With x = (1, 2, 3 ... n).
This function measures the probability P of obtaining the first success at the x attempt.
We need to know the probability of obtaining the first success at the third trial.
Where a success is defined as a customer buying online.
The probability of success in each trial is p = 0.3.
So:
P (X = 3) = 0.3 * (1-0.3) ^ (3-1)
P (X = 3) = 0.147
The probability of obtaining the first success at the third trial is 14.7%
Answer:
x+112°+133°+128°+100°+120°=720°(angle sum property of hexagon is 720)
x+593°=720°
x=720°-593°
x=127°
hope u understood!
Answer:
350 miles
Step-by-step explanation:
$45 ×7=315
$395.50-$315=80.50
$80.50÷$0.23=350 miles
