Statistics, Data, and Probability I: Drill Set 4, Problem 3. How many total different variations of car are there for Kevin to choose from?
|CAHSEE Math||Statistics, Data, and Probability I|
|Statistics||Charts, Graphs, and Tables|
|Statistics, Data Analysis, and Probability 6||Data sets|
car are there for Kevin to choose from?
And here are the potential answers...
It's really asking whether we can collate a lot of boring data into properly measured buckets.
Let's just think through this thing.
There are 5 colors. But each color could be one of 3 power systems -- gas, hybrid or diesel.
So you know he has at least 5 times 3 total choices of cars...
...that's 15 configurations before he even considers whether he wants to steal a sedan or a coupe.
We need to be smart about our time -- we've glanced first at the potential answers,
and we already know the 3 it CAN'T be -- 6, 10 and 15.
We have 15 choices WITHOUT the sedan-coupe issue.
So we know the answer has to be MORE THAN 15.
Well, there's only one that fits the bill there and that's 30.
So it has to be the answer... but think about the sedan-coupe issue --
two choices and thus far we've multiplied our choices each time we've had the option --
2 times 15 is 30 and yeah. Varoom.
It's D... 30.
So many options for a burgeoning burglar...