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The data sets give the number of platinum albums for the five male artists and the five female artists in the United States with the most platinum albums. (Platinum albums sell one million units or more.)
MALE ARTISTS WITH THEMOST PLATINUM ALBUMS | |||
Artist | PlatinumAlbums | ||
Garth Brooks | 145 | ||
Elvis Presley | 104 | ||
Billy Joel | 80 | ||
Michael Jackson | 71 | ||
Elton John | 65 | ||
Source: RIAA | |||
FEMALE ARTISTS WITH THEMOST PLATINUM ALBUMS | |||
Artist | PlatinumAlbums | ||
Mariah Carey | 64 | ||
Madonna | 63 | ||
Barbra Streisand | 61 | ||
Whitney Houston | 54 | ||
Celine Dion | 48 |
a. Without calculating, which data set has the greater mean number of platinum albums? Explain your answer.
b. Verify your conjecture from part (a) by calculating the mean number of platinum albums for each data set.
c. Without calculating, which data set has the greater standard deviation? Explain your answer.
d. Verify your conjecture from part (c) by calculating the standard deviation for each data set. Round answers to two decimal places.
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Chapter 12 Solutions
Thinking Mathematically, Books a la Carte Edition plus MyLab Math with Pearson eText -- Access Card Package, 4/e (7th Edition)
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