Please help, I'll give you a medal<3
Below are the results of tossing a number cube 8 times. Find the experimental probability of tossing a an even number.
3,4,1,2,5,1,6,5
A. 1/4
B.3/8
C.1/2
D.5/8
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jimthompson5910 (jim_thompson5910):
how many even numbers are in that list?
OpenStudy (anonymous):
3
OpenStudy (anonymous):
Is it B?
jimthompson5910 (jim_thompson5910):
yep there are 3 numbers you want (4,2,6) out of 8 total
OpenStudy (anonymous):
Thank you(:
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jimthompson5910 (jim_thompson5910):
np
OpenStudy (anonymous):
Help with another?
jimthompson5910 (jim_thompson5910):
sure, one more
OpenStudy (anonymous):
Awesome, thank you!
OpenStudy (anonymous):
A bag contains tiles with the letters C-O-M-B-A-N-A-T-I-O-N-S. Lee chooses a tile without looking and doesn't replace it.
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OpenStudy (anonymous):
He chooses a second tile without looking. What is the probability that he will choose the letter O both times?
OpenStudy (anonymous):
A. 1/132
B. 1/72
C.1/66
D.1/23
jimthompson5910 (jim_thompson5910):
What is the probability he chooses an O the first time?
OpenStudy (anonymous):
1/12?
jimthompson5910 (jim_thompson5910):
not 1/12 but close
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OpenStudy (anonymous):
Um... 2/12
OpenStudy (anonymous):
?
jimthompson5910 (jim_thompson5910):
yep
jimthompson5910 (jim_thompson5910):
once you pick an O out, you are left with 2-1 = 1 O tile left
this is out of 12-1 = 11 tiles
jimthompson5910 (jim_thompson5910):
You then multiply the two probabilities
(2/12)*(1/11) = ???
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OpenStudy (anonymous):
It's 2/23?
jimthompson5910 (jim_thompson5910):
nope
jimthompson5910 (jim_thompson5910):
multiply, not add
jimthompson5910 (jim_thompson5910):
reduce as much as possible
OpenStudy (anonymous):
oh opps, lmao. It's 2/132
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