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Subject Test Math 1

Question 1 of 32

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SAT Subject Test

The figure presents a stem-and-leaf plot. There are four stem values, each of which has a number of corresponding leaf values. The data are as follows. Stem: 3; Leaf: 7 and 9 Stem: 4; Leaf: 4, 5, 6, 6, and 7  Stem: 5; Leaf: 0, 2, 3, 3, 4, 4, 4, 8, and 8 Stem: 6; Leaf: 0, 1, 5, and 5 A key for the plot shows the value of stem 3 and leaf 7 as 37 inches.

The stem-and-leaf plot above gives the height, in inches, of evergreens in a nursery. What percent of the evergreens are over 55 inches tall?

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20 percent sign

Correct Answer: 
No

25 percent sign

Correct Answer: 
No

30 percent sign

Correct Answer: 
Yes

40 percent sign

Correct Answer: 
No

70 percent sign

Correct Answer: 
No

The heights of 20 evergreen trees are represented in the stem-and-leaf plot. There is 1 tree that is 37 inches tall, 3 trees that are 54 inches tall, and so on. There are 6 trees over 55 inches tall - they range from 58 inches tall to 65 inches tall. Six of the 20 trees is fraction numerator 6 over denominator 20 end fraction invisible times equals fraction numerator 30 over denominator 100 end fraction invisible times equals 30 percent sign.

Question Difficulty: 
easy