Mrs. welch and her 6 children are shopping at a local grocery store. each of the children will be allowed to select one box of cereal for their own from the 8 different boxes of cereal available (there are no two the same). in how many ways can the selections be made?

20160

Step-by-step explanation:

Given: The number of different boxes of cereal available = 8

The number of children are shopping at a local grocery store =6

Since, each of the children will be allowed to select one box of cereal for their own from the 8 different boxes of cereal available and there are no two the same.

Then by using permutation, the number of ways the selections can be made is given by :-

Hence, the  number of ways the selections can be made = 20160

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.

not sure but it may be b, as i said i'm not sure.