Question

Casey performs a survey to determine what students think about the sale offers in her store. Which is an unbiased representative sample of the population?

every tenth customer that does not buy something
the first thirty customers that do not buy something
every twentieth customer that enters her store
the first thirty customers that buy something

Answer 1

@jagr2713

Answer 2

@amistre64

Answer 3

@Agl202

Answer 4

C makes most sense cuz, If Casey wants to know what people think honestly, then she needs to ask those who did not buy as well as those who did.

Answer 5

can you do more?

Answer 6

Sure

Answer 7

A spinner is divided into ten equal segments. Each segment is numbered one through nine and one segment is labeled with "Free Spin." Isaiah spins the spinner ten times and never gets a free spin. What is the probability that he will get a free spin on the eleventh try?

zero percent
ten percent
eleven percent
one hundred percent

Answer 8

Prior spins do not affect the next spin. The only thing that would determine the odds, is... how many of the ten segments have odd numbers on them.

ODD - 1,3,5,7,9
NOT ODD - 2,4,6,8,free spin

So of the 10 segments, 5 of them are odd.

Answer 9

Which of the following is not true for the spinner shown?

A spinner is divided into four equal sections. Two are shaded red and two are shaded blue with each color alternating (red, then blue, then red...). The red sections are labeled 4 and 2. The blue sections are labeled 1 and 3.

Spinning blue or a 4 is a disjoint event.
Spinning red or a number less than 2 is an overlapping event.
Spinning red or a 1 is a disjoint event.
Spinning red or an even number is an overlapping event.

Answer 10

https://bavelky.brainhoney.com/Resource/23714711,656,0,0/Assets/flvs/Assessments/res0121/08_TB_18_031.jpg

Answer 11

@jane11509

Answer 12

hmm?