Question

Which of the following is not a true general statement?

A biased sample will never result in a representative conclusion.

Simple random sampling results in an unbiased sample.

A larger sample is more representative of the population.

A stratified sampling method is an effective method for scientific research.

Answer 1

https://answers.yahoo.com/question/index?qid=20100819104149AAoBAjS

Answer 2

so choice b?

Answer 3

@iGreen

Answer 4

Yes, the person eliminated the rest of the choices.

Answer 5

@iGreen

ca you tell me if i got this right

Which set of data shows forty percent as the experimental probability of a particular traffic light being green on your way to school in the morning?

10 of 25 selections at random from a card deck being a black card, with black representing a green light

2 tails in twenty coin flips, with tails representing a green light

2 odd-numbers in 8 rolls of a standard die, with odd numbers representing a green light

spinning 20 vowels out of 40 spins of a spinner with 6 equally divided sections labeled with 3 vowels and 3 consonants

my choice is the first 1

Answer 6

because 10 of 25 is 40%

Answer 7

Yes, you're correct!

A = 10 of 25 = 40%

B = 2 of 20 = 10%

C = 2 of 8 = 25%

D = 20 of 40 = 50%

Answer 8

ok thanks

Answer 9

another one?

A local radio station is researching radio listening habits. The station manager surveys listeners who call in to request songs. Which of the following represents the sample?

all of the listeners surveyed

all of the listeners

listeners in the eighteen to twenty-four age range

one listener

i think it is the last choice, but i think it could be the second one @iGreen

Answer 10

It states: "The station manager surveys listeners who call in to request songs."

It states nothing about age, so C is out.

It says the station manager surveys LISTENER\(S\)

So D is out, since there is more than 1 listener.

Answer 11

Also I think B is out because it says the manager surveys listeners \(\underline {who~call~in~to~request~songs.}\)

Answer 12

So that's not ALL of the listeners, its just some of them..so the best choice looks like A.

Answer 13

Aah okay i understand that

Answer 14

one more
i just need some help understandin this @iGreen

Answer 15

Term Definition
1. an internet advertisement
includes a phone number A) systematic sampling
to call for a survey
-----------------------------------------------------------------------------------------
2. interviewing five percent
of the homeowners in each B) convenience sampling
of 4 neighborhoods
-----------------------------------------------------------------------------------------
3. a daytime manager surveys
every fifth employee that arrives C) volunteer sampling
to work
-----------------------------------------------------------------------------------------
4. the recital costume preferences
for a dance studio determined by D) stratified sampling
surveying all of the students in the
Saturday morning dance class

Answer 16

mathing the term with the definition

Answer 17

A = 10 of 25 = 40% B = 2 of 20 = 10% C = 2 of 8 = 25% D = 20 of 40 = 50%