At a particular restaurant, of all customers order an appetizer and of all customers order dessert. If of all customers order both an appetizer and dessert, what is the probability a randomly selected customer orders an appetizer or dessert or both? Write your answer as a decimal (not as a percentage).

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.

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

$6.42

step-by-step explanation:

the football players are volunteering for the test.

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