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Predicting vs. Observing Probability Example 2450 Views
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Description:
Transcript
- 00:00
Thank you We sneak okay Here's A shmoop e question
- 00:05
for you Suppose the spinner shown below is fair meaning
- 00:09
that each of the little pie slice shaped thing he's
- 00:11
have an equal chance of being landed upon bethany's Friends
- 00:15
can't find a twister board so they're forced to use
Full Transcript
- 00:17
this thing what's the probability of her spinning the spinner
- 00:21
once and getting a vowel or the letter t If
- 00:24
she is successful she'll get to put her foot right
- 00:27
up against greg's foot which would be just about the
- 00:29
best thing ever hear the potential answers Okay so what
- 00:36
is this question asking Well first whether we can read
- 00:39
something resembling a pie chart Second question is testing whether
- 00:42
we understand how the word or works in these probability
- 00:45
style questions when we have or we add meaning that
- 00:50
the stuff before the or and the stuff after it
- 00:53
gets summed when we figure out the total probability quotient
- 00:57
that is if either of the things on either side
- 01:00
of the orson happened then we positively count the numbers
- 01:04
involved So in this case the first part before the
- 01:07
or is asking for the odds of spinning of vowel
- 01:10
this part is pretty straight forward We can count one
- 01:13
two three four five six seven eight letters total and
- 01:16
hear the vowels a e those are the vowels and
- 01:20
there are two of them So the odds of spinning
- 01:23
of vowel on the first spin our two out of
- 01:26
eight But then the second part of the question adds
- 01:29
thie or roll a t and there are three teas
- 01:33
so we just add who vowels plus three teas and
- 01:37
we get a five potential yea outcomes out of a
- 01:39
total of eight an answer c ola bethany gets the
- 01:43
spin she was hoping for and is now getting close 00:01:46.491 --> [endTime] and personal with her crush