The director of a recreation center wants to survey users of the centers facilities to ask their opinions about basketball.

which sample is most likely to be a representative sample?

a. 50 randomly selected users of the centers facilities

b. every 10th women who enters the recreation center.

c. 50 shoppers at a mall next to the recreation center.

d. 50 kids at the center between the ages of 10 and 14

A. 50 randomly selected users of the centers facilities

Step-by-step explanation:

The survey has to be conducted with users of the recreation center facility. Therefore, we need to take the survey user of the center facilities.

The answer is A) 50 randomly selected users of the centers facilities

Hope this will helpful.

Thank you.

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.

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft