1833 bomber planes go out on a mission over enemy territory. 1002 of them come back. A statistician is asked to analyze the damage on these planes in order to determine which areas of the plane need better armor. To do so, the 1002 planes are each assigned a number from 1 to 1002. Then, 100 numbers between 1 and 1002 are randomly selected, and the corresponding planes are investigated for damage. It is found that 73% of the planes have significant damage to a particular section. What is the margin of error?

the answer is ! ?

x = 12

y = 1

for the points!

0 and 5 minutes

step-by-step explanation:

given that one morning eight buses arrive late by the number of minutes given below:

0 8 2 6 9 2 0 7 8

write these in ascending order

0   0 2 6 7 8 8 9

in the afternoon two more buses arrive at the bus stop say by x and y minutes late.

total number of buses = 10

median = average of 4th and 5th after arranging in ascending order

since 4th entry is 6, the values of x and y should be below 6

also given 0 is the mode so either x or y or both should be 0 because then only 0 gets the maximum frequency and hence mode

thus we have

0 0 0 2 6 7 8 8 9 and another unknown entry which is below 6.

since median is 3.5, we have the unknown entry to be 5 only because then only median =( 2+5)/2

thus the after noon buses were late by 0 and 5 minutes.