Chen has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Chen's Jumble has 4 classical songs, 3 rock songs, and 2 rap songs on it. Chen is going to listen to 360 songs. What is the best prediction for the number of times Chen will listen to a classical song?
Answers
Answer:
Chen would likely listen to a classical song 160 times.
Step-by-step explanation:
So, there are 9 songs in total and 4 of them are classical. We can use the ration n:s ( n being the number of classical songs possibly played and s being the total number of songs played ). Next, we need to figure out how much we need to multiply 9 by to get 360. This will help us change the total number of songs played to 360. I noticed that we had to multiply 9 40 times to get to 360. Then, I had to also multiple 4 by 40 to get the number of times we can guess Chen will listen to a classical song, 160. Now we have the ratio 160:360 ( 160 being the number of classical songs Chen will likely listen to and 360 being the number of songs played). So, if Chen were to listen to 360 songs, 160 of them would likely be classical.
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Hope this helped
- Brooklyn
Answer:
Close to 160 times but not exactly
Step-by-step explanation:
Got it right on khan academy.