A manufacturer is considering building a new and better mousetrap. She estimates the probability that the new mousetrap will be successful is 3/4. If it is successful, it would be able to make $120,000. Of course, she would make nothing if it were unsuccessful. The development costs for the mousetrap are $98,000. What is the expected value? $22,000
-$32,000
-$8,000
$8,000

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.

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

c

step-by-step explanation:

where are the graphs?

step-by-step explanation: