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Data Analysis, Statistics, and Probability Videos 36 videos
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Description:
There are 100 tiles in a bag of Scrabble tiles. Four of them are S's. If Akshay draws one tile, looks at it, puts it back, and then draws one tile again, what is the probability that he will draw an S both times?
- Data Analysis, Statistics, and Probability / Probabilistic Reasoning
- Data Analysis, Statistics, and Probability / Probabilistic Reasoning
- TSI Math / Data Analysis, Statistics, and Probability
- Test Prep / TSI
- TSI Mathematics / Data Analysis, Statistics, and Probability
- TSI / TSI Math
- TSI / TSI Mathematics
- Test Prep / TSI
Transcript
- 00:03
Okay sy mash members last one Hold your breath and
- 00:08
now let it go There are hundred tiles in a
- 00:10
bag of scrabble Four of them are ss If action
- 00:13
draws one tile looks at it puts it back and
- 00:16
then draws one tile again what is the probability that
Full Transcript
- 00:19
he will draw in s both times We love us
- 00:25
some scrabble here it's month Our preferred dictionary is a
- 00:27
little weird though it's got words like quickie bow and
- 00:30
park nerf and needless to say we kill it when
- 00:33
we play scrabble Well this bag has a hundred scrabble
- 00:35
tiles and only four of them are letter asked if
- 00:38
action is drawing a tile at random and replacing it
- 00:40
that means each time he reaches into the bag there
- 00:42
will be a hundred tiles with for s is In
- 00:45
other words the probability of drawing an ass will always
- 00:47
be for one hundred or one out of twenty five
- 00:50
or point oh four or about four percent each time
- 00:54
as long as he tosses the tile he took back
- 00:57
in before he draws again So to find the probability
- 01:00
of getting an ass followed by another asked multiply those
- 01:02
two probabilities together and you've got a point Oh four
- 01:05
times point oh for his point o o one six
- 01:07
So action has a point One six percent chance of
- 01:11
getting and ask followed by an s the better question
- 01:14
would be how likely are we to get a mad
- 01:16
followed by a brew If dr seuss says they're letters 00:01:20.348 --> [endTime] or words Well who are we to argue
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