Question

Alisa questions three students from her class to learn about the movie preferences of students in her school is this a valid random sample?

Answer 1

hint: if they're all from the same place it's a convenience sample. it might be biased because people in the same classroom might share certain characteristics that are not representative of the general population

Answer 2

so, do you think it is "random" or not?

Answer 3

Yes

Answer 4

re-read what I just said

Answer 5

No

Answer 6

good

Answer 7

Thanks

Answer 8

Carson interviews students working part time to gather data on the general spending habits of students is this a valid random sample

Answer 9

what do you think? does this one specific group represent the entire population?

Answer 10

Yes

Answer 11

Why do you think so?

Answer 12

Because it says habits of students so that means it's representing all the students

Answer 13

it says he's "interviewing students \\\who work part time\\\" so the sample is not representative (there might be something different about the spending habits of part time students

Answer 14

therefore, the sample is not random

Answer 15

K I get it now so it's not a valid sample

Answer 16

it's not a ~random~ sample, yes

Answer 17

K I got 2 more to ask u

Answer 18

Miles randomly surveys a group of costumers at a coffee shop to understand the coffee consumption habits of 18 to 24 year old Americans is it a valid random sample?

Answer 19

questioncove.com/study#/updates/595e710973c8ca9b81b91000

Answer 20

That's wut I'm on already

Answer 21

if he's at this one specific coffee shop, does that represent ALL 18-24 coffee drinking habits? what about people who don't go to coffee shops? what about people who don't like coffee?

Answer 22

do you think it's random or not?

Answer 23

I think it does because it says all 18-24

Answer 24

that's not the sample

Answer 25

Wym

Answer 26

he didn't survey all people 18-24 years old

he only surveyed ONE specific coffee shop

Answer 27

OK I get it so it is a valid sample

Answer 28

no it is not

Answer 29

please read carefully and slow down

Answer 30

OK srry my bad

Answer 31

Rachel is studying the population of a particular bird species in a national park she observes every 10th bird of that species that she can find in the park her conclusion is that the birds living in the park who belong to that species generally feed on insects is rachael sample biased r not biased?? and based on the sample Rachel generalization is valid r not valid???

Answer 32

I think so, since she only wants information about birds in the park, it's ok to do a systematic random sample (picking every 10th bird)

Answer 33

So it's biased

Answer 34

not biased, read carefully

Answer 35

Not valid?

Answer 36

valid

Answer 37

K