Probability question
http://i335.photobucket.com/albums/m467/flameboy298/Recapture-2.png a. What is the probability a day in the 80s is a Monday? b. Which set forms the intersection of Tuesdays in the 80s? c. What is the probability an observation picked at random is both a Sunday and more than 100 degrees?
I need help going through these questions
Ok, so for number 1, a day in the 80s, I think that part is just extra information to try to fool you. So it would be what is the probability a day is a monday, and then you would figure out how many mondays there are in a year (four mondays a month multiplied that by 12 cus of how many months there are) so 1/48, I think.
Thanks
I understand that
I think maybe the second one is maybe 100-109?Forms a intersection
Woot woot! I am not sure what number two is, but three for the first part it would be again, 1/48 because there are 48 sundays in a year. The part about more than 100 degrees is tricky, though, so I am not sure about the last part.....Number two might be 180 and 90, but then again, that is a total guess and I could be very wrong...
thanks
No problem!
wait I have one more
Aight I'm game
Compute the probability that an observation picked at random will be a Saturday observation.
My best guess is 1/48, but at random...I would say 1/48, I think... Sorry if this is wrong
Thanks anyways man
Any time!
well
I think that last question is just trying to fool you as well but there are only 7 days a week and it is not saying in a year... so maybe its just 1/7?
but it doesn't say in a week...
I have no idea, I find it ironic that I'm even helping with math cus I ultimately fail at the subject xD
also your answer to the first question was wrong
It is?
It Wouldn't be 1/48, because that would assume only 48 days in a year... what you meant to type was 48/365. simplified that is 1/7
Ahhh....and I was really convinced it was 1/48 thanks
Right! Sorry bout that again...
wait 48/365?
No problem it was a simple mistake. Zz was on the right track. And simplify 48/365
48/365 = 1/7
Yeah I simplified but did you understand the rest?
number 3 should be 3/20
What makes you think that?
2/20 my bad. and because you take all the days that were 100 deggrees or over, and then however many of those days wer sundays is your answer also simplify 2/20 to 1/10
Thanks
No problem. anything else you need?
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