ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Probabilistic Reasoning Videos 17 videos
SAT Math: Statistics and Probability Drill 1, Problem 2. If the four largest numbers in the set were doubled, what would happen to the median...
SAT Math 1.3 Statistics and Probability. Approximately what is the probability that they will be placed in alphabetical order?
SAT Math 1.4 Statistics and Probability. If two standard 6-sided dice are rolled, what is the probability that the sum of the dice will be gre...
TSI Math: Recognizing How Changes Affect Probability 17 Views
Share It!
Description:
A bowl of jellybeans has 12 cherry, 13 grape, 17 lemon, and 10 orange jellybeans. Sandra takes out and eats a lemon jellybean. What has changed for the probability of pulling out a cherry jellybean since she ate a lemon one?
- 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
- 00:02
Okay sy mash buffers Next up a bowl of jellybeans
- 00:05
has twelve cherry thirteen great seventeen lemon and ten orange
- 00:08
jelly beans Sandra takes out and eat a lemon jelly
- 00:12
bean What has changed for the probability of pulling out
- 00:15
a cherry jelly bean since she ate a lemon One
Full Transcript
- 00:23
So this problems right up our alley because we could
- 00:25
really use a goodly sized handful of jelly beans Yeah
- 00:28
we missed lunch again Seems like sandra i got to
- 00:30
the ball before us and sanders always eating and jelly
- 00:33
beans Yeah we're talking about you sandra We know we
- 00:35
know you do it well there's no sense in crying
- 00:37
over spilled jelly beans Let's figure this out she's taken
- 00:40
and eating a lemon jelly bean and now we're trying
- 00:42
to figure out how the probability of grabbing a cherry
- 00:44
has changed didn't go up to go down because of
- 00:47
the way the question is asked We know the cherry
- 00:50
probability is different because there's one less jelly bean total
- 00:53
This makes the cherry probability a dependent one if the
- 00:57
probability changes based on the outcome of another event it's
- 01:01
dependent upon that event so answer the question we need
- 01:04
to find the probability of meeting a cherry before sandra
- 01:06
even got her mitts on that lemon one there were
- 01:09
fifty two jellybeans at the beginning and twelve were cherry
- 01:13
giving us a before probability of twelve out of fifty
- 01:16
two or three out of thirteen if we reduce it
- 01:19
Well after sander eats the lemon one that leaves only
- 01:21
fifty one total jelly beans in the ball So the
- 01:24
denominator changes but they're still twelve cherry jelly beans so
- 01:28
it gives us an edge after probability of twelve over
- 01:31
fifty one So it looks like the numerator has stayed
- 01:33
the same but the denominator shrink So the odds of
- 01:37
you picking that cherry jelly bean went up when the
- 01:40
total jellybeans were reduced And while the answer here is
- 01:44
just be the denominator and we're the shmoop innate er 00:01:47.326 --> [endTime] in case anyone asks
Related Videos
Per month, how much more money does Rose save than Olive?
All of the following statistical measures of the data above have the same value EXCEPT for
500 customers had pizza. What is the minimum number of slices that Lettuce Stuff You could have served yesterday?
What is the median number of slices eaten per customer?
The following table shows the coffee preferences of everyone in Isabelle's office. What percentage of Isabelle's coworkers put cream in their coffee?