Mike surveyed the students at his school to determine which activity they would like to take part in. The bowling alley offered a 20 percent discount if 300 students of the school's 560 would sign up for the trip. Mike surveyed a random sample and asked which activity they would prefer. Bowling-60 Skating-90 Attend a play-15 Swimming-35 Based on the data in the survey,how many students are likely to choose bowling? A. 98 B. 42 C. 168 D. 252 Will they get the discount offered by the bowling alley?
@Firejay5
@tkhunny
@Luis_Rivera
@ash2326
I think it's D. 252, but I am not for sure
How did you get that; do you mind explaining?
I am not that good at Random Samples
Oh, ok. I'll just put 252.
Do you trust me
Will they get the discount offered by the bowling alley?
And yes, sure, I trust you.
They won't
Okay.
because only 60 students want to go
Alright. Thanks!
well wait a second
Okay.
Add each of the answers A, B, C, and D to 6 and see if it equals 300 or close to it
Alright.
560.
252 + 60 = 312 students, so they will have the discount
Oh ok/
Why did you say 560
so they will
I added 98+42+168+252
NVM though.
300 students of the 560 students will get the 20% discount
Ah. So no?
252 + 60 = 312, so yes
Oh. Okay. Thanks!
I believe so Idk
Wow... Sample Size is 200. This is an amazing 200/560 = 36% of the population. This gives the following naive proportions that might choose each option. Bowling-60/200 = 30% ==> 168 / 560 Skating-90/200 = 45% ==> 252 / 560 Attend a play-15/200 = 7.5% ==> 42 / 560 Swimming-35/200 = 17.5% ==> 98 / 560 Checking 168 + 252 + 42 + 98 = 560 -- Good. Note: This sort of survey and extrapolation is loaded with error potential. I called it "naive" in order to be VERY polite.
@tkhunny It should be 300
Please define "it". The sample size is 200. The student body is 560. Use your naive predictive measure to see if your student body will meet the bowling alley's requirement of 300. Then asnwer the questions: 1) Based on the data in the survey, how many students are likely to choose bowling? 2) Will they get the discount offered by the bowling alley?
560 is total students and sample size is 300 = 20% discount of students who want to go to the bowling alley
The sample size is NOT 300. Bowling-60 Skating-90 Attend a play-15 Swimming-35 60 + 90 + 15 + 35 = 200 The sample size is 200.
Okay, what's the answer
It is already given in the discussion above. Please demonstrate your ability to understand the question by selecting the correct responses.
B. 42 then
I had a bad connection;sorry. But it's okay, Jay and Tk. You may now leave my post if you wish to do so:)
why
If you want to attend the play, then 42 is correct. Try the bowling alley, instead.
C. then
Now answer the final question. Is 168 > 300?
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