Mekala has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Mekala's Jumble has 4 techno songs, 2 country songs, and 3 jazz songs on it. Mekala plans to listen to 270 songs.Complete the following statement with the best prediction.Mekala will listen to...Choose 1 answer:(A) Exactly 60 country songs(B) Close to 60 country songs but probably not exactly 60 country songs(C) Exactly 210 country songs(D) Close to 210 country songs but probably not exactly 210 country songs
Q. Mekala has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Mekala's Jumble has 4 techno songs, 2 country songs, and 3 jazz songs on it. Mekala plans to listen to 270 songs.Complete the following statement with the best prediction.Mekala will listen to...Choose 1 answer:(A) Exactly 60 country songs(B) Close to 60 country songs but probably not exactly 60 country songs(C) Exactly 210 country songs(D) Close to 210 country songs but probably not exactly 210 country songs
Determine total songs: Determine the total number of songs on the Jumble MP3 player.Mekala has 4 techno songs, 2 country songs, and 3 jazz songs. To find the total, we add these numbers together.4 (techno) + 2 (country) + 3 (jazz) = 9 songs in total.
Calculate probability: Calculate the probability of selecting a country song.Since there are 2 country songs out of 9 total songs, the probability (P) of selecting a country song is:P(country song)=Total number of songsNumber of country songsP(country song)=92
Predict country songs: Predict the number of country songs Mekala will listen to out of 270 songs.To find the expected number of country songs Mekala will listen to, we multiply the total number of songs she plans to listen to by the probability of selecting a country song.Expected number of country songs = Total songs Mekala will listen to ×P(country song)Expected number of country songs = 270×(2/9)
Perform calculation: Perform the calculation to find the expected number of country songs.Expected number of country songs = 270×(2/9)Expected number of country songs = 270×0.2222…Expected number of country songs ≈60
Choose best prediction: Choose the best answer based on the prediction.Since the expected number of country songs is approximately 60, and it is unlikely to be exactly 60 due to the randomness of the selection, the best prediction is:(B) Close to 60 country songs but probably not exactly 60 country songs.
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