Ask Question
MathematicsMathematics
10 November, 18:21

Mr. McElroy enjoys listening to his MP3 player, which has 2,000 songs in five different genres of music. He took a sample of the number of each type of song it played on two different one-hour sessions when it was set to play a random mix. The results are displayed in the table below. What is a good prediction for the number of rock songs Mr. McElroy has on his MP3 player?

Listening Samples from Mr. McElroy's MP3 Player

Sample 1

Sample 2

Country

5

Country

3

Pop

4

Pop

3

Classical

3

Classical

5

Jazz

2

Jazz

4

Rock

6

Rock

5

225

550

1100

1667

Mark this and return

+5
Answers (2)
  1. 10 November, 18:30
    0
    The correct number is 550 rock songs.

    Step-by-step explanation:

    To find this, we start by determining how many songs there were in each trial.

    5+4+3+2+6 = 20

    3+3+5+4+5 = 20

    Next we need to find the average number of rock songs in the trials.

    (6+5) / 2 = 5.5

    Now to find the average percentage of songs, divide the rock songs by overall.

    5.5/20 = 27.5%

    Now we can multiply that percentage by the total number of songs on the mp3 player.

    2000*27.5% = 550 Songs
  2. 10 November, 20:52
    0
    550 rock songs
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Mr. McElroy enjoys listening to his MP3 player, which has 2,000 songs in five different genres of music. He took a sample of the number of ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
In a group of 21 students, 8 students take Art courses, 7 students take Music courses. Two students take both courses. A student is chosen randomly from this group.
Answers (1)
If you pay $ 34.02 for a jacket that includes a 5% sales tax, what is the price of the jacket before the sales tax?
Answers (1)
A club had a total of $1,520.50 in its bank account. At a budget meeting they decide to set aside 0.12 times the total amount to travel. How much will they set aside to travel?
Answers (1)
Jessica rides the bus 8 and 4/5 miles each day what is the total number of miles she rides in 21 days?
Answers (1)
Kendra has a math test every 12 school days and a vocabulary test every 9 school days. She had both a math and a vocabulary test today. The next time she will have both tests on same day will be in? School days.
Answers (1)
New Questions in Mathematics
At a rate of 9.30 yards per second how long would it take someone to run 100 yards
Answers (1)
How do I evaluate the indefinite integral ∫sin (3x) ⋅sin (6x) dxintsin (3x) * sin (6x) dx?
Answers (1)
What is the simplified value of the expression below? 4.5 - 5.9 divided by 0.2 x 3 - 0.2
Answers (1)
Fe + Zn²⁺ → Fe²⁺ + Zn. Which element is being reduced?
Answers (1)
A 150-pound person burns 6.3 calories per minute when walking at a speed of 4 miles per hour. While walking, this person eats a snack that has 90 calories. This snack subtracts from the calories burned while walking.
Answers (1)
Home » Mathematics » Mr. McElroy enjoys listening to his MP3 player, which has 2,000 songs in five different genres of music. He took a sample of the number of each type of song it played on two different one-hour sessions when it was set to play a random mix.
Sign Up Forgot Password?