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

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).

brandon has 4344 video games.  

step-by-step explanation

7373 - 2929 = 4344

pls let me know if it was correct