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Mathematics

1.​At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following methods is most likely to be random?
a.
You survey customers at the local shopping mall.
b.
You survey people chosen randomly from the local phonebook.••
c.
You survey several of your friends.
d.
You survey customers at a popular restaurant.


​2.​Which survey question is unbiased?
a.
“Do you think we should allow them to cut down the trees and pave over the grass for the new playground?”
b.
“Which do you prefer with a meal—water, or a syrupy sweet soft drink?”
c.
“Should there be a school dress code?”••
d.
“Do you prefer bringing a healthy lunch to school or eating cafeteria food?”

Correct me

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  1. Several years ago b would have been the answer to your first question. However, today, it's mostly older people who still have land lines and are listed in the phone book. (I don't even think I've gotten a phone book in the last couple of years.) None of your answers would produce random results.

    Your second answer is correct.

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    👤
    Ms. Sue
  2. b
    c
    d
    c
    b
    a

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  3. i got 100% this is good and right.

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  4. is your hero 100% right?

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  5. your hero is 100% correct, thanks so much!

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  6. Are you actually a teacher if so WHY ARE YOU HELPING THEM CHEAT

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  7. Dang Ms. Sue take a chill pill he cool unlike you. I understand you get a lot of hate but that's cause we're kids and you're the teacher no one likes, an stop getting mad when someone else's uses "your" username what if someone else in the teaching department has the last name Sue you cant just tell them they cant use their last name??? And yes Hero is correct. P.s. hate crimes don't exist in my area don't try to report me for one XD.

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  8. thx your hero

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  9. there are actually 9 questions

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  10. ;-; hero or whatever is right ;-;

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  11. Wow XD

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  12. well then...

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  13. Whats Number 7....

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  14. um .. welp I have a written respond … and I don't know about you but ,.. CAN YOU PLEASSSSEEEEE HHEEELLPPP MMEEEE!!!!!

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  15. Can anybody help me with the written response? Pretty please? ;)

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  16. The answer to the typing question for (c) is 5.5%

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  17. i bet yall cant make urself ms. sue

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  18. Here are your answers, cheaters!

    1: B, You survey people chosen randomly from the phone book.
    2: C, "Should there be a school dress code?" (no.)
    3: D, 389. (Three hundred and eighty nine)
    4: C, 291. (Two hundred and ninety one.)
    5: B, 352. (Three hundred and fifty two.)
    6: A, 30. (Thirty.)
    7: Check out brainly.com :)

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  19. i spent almost an hour trying to find help and this dose not help pls someone help me find the writen answer cause im lost also Kokichi Oma you need an account to go on brainly and not evryone has that kind of time :p

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  20. nope if your reading this then
    just watch the adds that brainly puts up

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  21. 7. a. Mr. Kent interviewed the 54 students as they are going to leave the school, it is not considered to be a random sample. It is because a random sample is when a set is taken from a population. Mr. Kent interviewed the 54 who are going to leave, meaning, he didn't take a set out of that 54, he took all of them. So it is not a random sample.

    b. The question that Mr. Kent asked is considered to be a leading question, so it does not seem biased.

    c. If there are 54 respondents.
    51 = yes, the rest is no.
    = 54 - 51 = 3
    = 3 is now divided to 54 = 3/54
    = giving an answer of 0.0555
    = 0.0555 x 100
    = 5.6%
    = The percent of responses that says 'no' is 5.6%
    there u go!

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  22. thx nene

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  23. Nene, I disagree the question is biased if a question is a leading question then it certainly is biased. Mr Kent inserted a biased word into to the question thereby making it biased.

    A. Mr Kent interviewed 54 students as they left the school rather than selecting different students from different grades or ages and he could have interviewed the teachers too.

    C. 6% is the answer. 51/54=94%=100% -94=6%. ( instead of that long drawn out equation by Nene)

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