Use bayes theorem to solve this problem, a paper bag contains two red balls and one blue ball. a plastic bag contains three blue balls and one red ball. a coin is tossed. if it falls heads up, the paper bag is selected and a ball is drawn. if the coin falls tails up, the plastic bag is selected and a ball is drawn. if a red ball is selected what is the probability that it came from the paper bag?

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

y=1/4x-4

step-by-step explanation:

probability for j is 1/4

while

a is 1/6

the answer is -1 1/5, also a

hope i

-lavira : )