In a survey at a shoe store, 200 customers were asked whether they have
running shoes or basketball shoes. the results are in the relative frequency
table.

option D

Step-by-step explanation:

in a shoe store survey there are 200 customers.

given in the table is that people using basketball shoes, not using basket shoes and then there is also classification of people using running or non running shoes.

We have been asked what percentage of people have basketball shoes.

People having basket ball shoes = 0.23 × 200 + 0.31 ×200

                                                       = 108

percentage of people wearing basket ball shoe =

= 54 %

we can also find it by directly adding the given value and multiplying it by 100

= 0.23+0.31 = 0.54 ×100 = 54%

hence, the correct answer is option D

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all