Question

1. The principal at a school with eight hundred students is considering changes to the lunch menu. She wants to get the opinions of all of the students about their favorite menu items. So she asks the first 5 students who get off the bus in the morning. Which statement does not reflect the situation?

The sample is biased.

The principal collected a representative sample.

The sample size is too small.

The principal used convenience sampling.

Answer 1

The principal collected a representative sample.

Answer 2

2.Bethany belongs to an outdoor club in her town. The members of the club are planning a community event for which they want to make T-shirts. The leader of the club takes a vote on the preferred color of the T-shirts. The results are shown in the table.

http://learn.flvs.net/webdav/assessment_images/educator_math2/v9/08_04c_28_019.jpg

If all members of the club were included in the survey, which statement is a correct conclusion?
The club prefers white T-shirts.

1 out of 5 every club members prefers pink T-shirts.

Twenty percent of the club prefers black T-shirts.

Red is the least preferred T-shirt color.

Answer 3

3.Which of the following should not need to be considered when trying to ensure that a sample for a survey will be representative of the population?

guesses about survey results

make-up of the population

method of sampling

size of sample

Answer 4

4.A neurobiologist is launching a nationwide professional study on the connection between text messaging and a particular type of brain function. The population of his study is twelve- to thirty-two-year-old people who text at least once a day. He wants to make sure that the whole range of ages is represented in the study. Which kind of sampling would provide the most reliable information for this study?

convenience sampling

simple random sampling

systematic sampling

volunteer sampling

Answer 5

5.A biologist is conducting research on four different types of fish found in a local lake. The numbers of each type are shown in the table.

http://learn.flvs.net/webdav/assessment_images/educator_math2/v9/08_04c_28_018.jpg

She plans to use a stratified sampling method in which twenty percent of the total population is included in the studies. How many yellow perch will be in her sample?

6

twelve

eighteen

twenty-four

Answer 6

6.The director of a children's ballet center is conducting surveys to get feedback about the classes. There are three types of classes, each for a particular age range: 3 through 5, 6 through 8, and 9 through twelve. What term can we use to describe all students in classes for 6 through 8 year olds?

experimental unit

population

sample

subgroup

Answer 7

That is all of the questions

Answer 8

whoa buddy slow down lol

Answer 9

sorry

Answer 10

its ok lol three and five nobody can help u u half to open a link and we cant open it

Answer 11

ok wat about the others

Answer 12

simple random sampling for 4.

Answer 13

im not good at random sampling it is confusing to me

Answer 14

6. is an experimental unit

Answer 15

thankyou

Answer 16

can I get an answer for 4 all of the other ones are aswered

Answer 17

nevermind you already answered it thankyou

Answer 18

that is all of my questions bye