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Answer:
a) There is no mode.
b) 30 CDs
c) 230 CDs
Explanation:
a) No number of CDs is repeated, so there is no mode.
b) Number of Rock CDs = 60 (20 × 3)
Number of Classical CDs= 30 (20 × 1.5)
[tex]60 - 30 = 30 CDs[/tex]
c) Pop = 100 CDs (20 × 5)
Jazz = 40 CDs (20 × 2)
Classical = 30 CDs (20 × 1.5)
Rock = 60 CDs (20 × 3)
[tex]100 + 40 + 30 + 60 = 230 CDs[/tex]
Answer: 1. The type of CD that was the mode is "Pop".
2. 30 more Rock CDs were sold than Classical CDs
3. 230 CDs were sold altogether
Explanation: 1. Mode = the value that appears the most often and Pop CDs appeared the most often
2. Rock CDs = 60 Classical CDs = 30 60 - 30 = 30
3. Pop CDs = 100 Jazz CDs = 40 Classical CDs = 30 Rock CDs = 60 100 + 40 + 30 + 60 = 230