Mathematics
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OpenStudy (anonymous):
I roll a die twice. What is the probability that I will get a bigger number in the second toss?
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OpenStudy (anonymous):
@campbell_st @jim_thompson5910
OpenStudy (misty1212):
HI!!
OpenStudy (misty1212):
take all cases
OpenStudy (anonymous):
i was thinking that lol
OpenStudy (misty1212):
first roll is a one, then second could be 2,3,4,5,6 so
\[\frac{1}{6}\times \frac{5}{6}\] for that one
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OpenStudy (misty1212):
first roll is a two, second could be 3,4,5,6 so
\[\frac{1}{6}\times \frac{4}{6}\] for that one
etc
OpenStudy (anonymous):
okay so 5/36 +4/36 +3/36 +2/36+1/36 ?
OpenStudy (anonymous):
so 15/36 ?
OpenStudy (anonymous):
am i right satelitie ?
OpenStudy (anonymous):
i would go with that-, yes
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OpenStudy (anonymous):
thanks guys!
OpenStudy (misty1212):
\[\color\magenta\heartsuit\]
OpenStudy (anonymous):
yw
OpenStudy (anonymous):
Lucky Louie flipped a coin 8 times.
What is the probability that it came up tails every time (all 8 times) ?
OpenStudy (anonymous):
damned unlikely
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OpenStudy (anonymous):
last one i promise lol
OpenStudy (anonymous):
\[\frac{1}{2^8}\]
OpenStudy (anonymous):
A single card is drawn from an ordinary deck of 52 cards.
Find the probability that the card is a face card (jack, queen or king) OR a heart.