Question: 7.21 The Aleppo pine and the Torrey pine are widely planted as ornamental trees in southern California. Here are the lengths (centimeters) of 15 Aleppo

7.21 The Aleppo pine and the Torrey pine are widely planted as ornamental trees in southern California. Here are the lengths (centimeters) of 15 Aleppo pine needles: 10.2 7.2 7.6 9.3 12.1 10.9 9.4 11.3 8.5 8.5 12.8 8.7 9.0 9.0 9.4

(a) Find the five-number summary for the distribution of Aleppo pine needles. Figure 7.4 gives a boxplot for the distribution of the lengths (centimeters) of 18 Torrey pine needles. Use this information to help answer the remainder of this question.

(b) The median of the distribution of Torrey pine needles is closest to which of the following values? 24 25 27 30

(c) Twenty-five percent of the Torrey pine needles exceed what value?

(d) Given only the length of a needle, do you think you could say which pine species it comes from? Explain briefly.

7.21 The Aleppo pine and the Torrey pine are widely planted as

ornamental trees in southern California. Here are the lengths (centimeters) of 15

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