A candidate for mayor wants to know how strong her support is among voters, so she posts an online survey on her campaign website for voters to take.
Is this sample of voters likely to be biased or unbiased?
A.
biased
B.
unbiased
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OpenStudy (anonymous):
@vshiroky
OpenStudy (anonymous):
can you help?
OpenStudy (leozap1):
I would go with unbiased, but I am not sure, this is not math though...
OpenStudy (anonymous):
its in my math lesson
OpenStudy (leozap1):
Don't seem like math lol. I would go with unbiased though.
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OpenStudy (anonymous):
thanks
OpenStudy (leozap1):
Np, let me know if it was right. :)
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
A light bulb manufacturer randomly tests 1500 bulbs and finds that 2 are defective.
How many defective bulbs would be expected in a shipment of 24,000 bulbs?
A.
32
B.
48
C.
120
D.
750
OpenStudy (anonymous):
@thomaster
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OpenStudy (anonymous):
@djcool31
OpenStudy (anonymous):
@Whitemonsterbunny17
OpenStudy (anonymous):
@CO_oLBoY
OpenStudy (anonymous):
THE question at the bottom
OpenStudy (anonymous):
@Ash0987
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whitemonsterbunny17 (whitemonsterbunny17):
I can help you, but what do you think the answer is?
OpenStudy (anonymous):
why did u put me in that
OpenStudy (anonymous):
i needed help thats why
OpenStudy (anonymous):
c
OpenStudy (leozap1):
Its 32...
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whitemonsterbunny17 (whitemonsterbunny17):
@leozap1 is correct
OpenStudy (leozap1):
All you do is take 24,000 and divide it by 1500 and you get 16. It tells you there is 2 out of 15 so you multiply it by 2 and get 32.|dw:1396034802548:dw|
OpenStudy (anonymous):
thank you
OpenStudy (leozap1):
Np. :)
OpenStudy (anonymous):
wanna help with one more?
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OpenStudy (anonymous):
A large bin of mixed nuts contains peanuts, cashews, almonds, and walnuts. Sheila scoops out a bowl full of nuts and counts how many of each type she has: 17 peanuts, 9 cashews, 12 almonds, and 10 walnuts.
Armando scoops out a bowl of 32 nuts. About how many should he expect to be cashews?
A.
5
B.
6
C.
9
D.
18
OpenStudy (anonymous):
b?
OpenStudy (anonymous):
brb
OpenStudy (leozap1):
Ok so there are 48 nuts total, out of the total number of nuts 9 are cashews. So, 9/48 = 5.333 (goes on for ever). You should round that to 5 not 6 so it would be A.
OpenStudy (anonymous):
ok
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OpenStudy (leozap1):
The best way to know how to round a number is to remember this,
5 and above kick it up, 4 and below keep it the same.
OpenStudy (anonymous):
yoyoyoyoyoyoyoyoyoyoyoyoyoyoyo
OpenStudy (anonymous):
What is the slope of the line that passes through the points (2, 3)
and (–2, 6)?
OpenStudy (anonymous):
@leozap1
OpenStudy (anonymous):
ash can u help?
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OpenStudy (anonymous):
anybody?
OpenStudy (anonymous):
@TuringTest
OpenStudy (anonymous):
@drbgonzal
OpenStudy (anonymous):
@tHe_FiZiCx99
OpenStudy (anonymous):
@sourwing
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OpenStudy (anonymous):
anybody
OpenStudy (anonymous):
@jigglypuff314
OpenStudy (leozap1):
What is the answer choices?
OpenStudy (anonymous):
one sec
OpenStudy (anonymous):
i vote yes
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OpenStudy (leozap1):
I'm not to good with slopes and graphs but I will try to help. :c