Question

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These are the means and standard deviations for samples of heights from
two kinds of trees.
Tree A
Mean: 25 ft
Standard deviation: 5 ft
Tree B
Mean: 60 ft
Standard deviation: 12 ft
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Select the two true statements.
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CTS
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DC)
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A. Tree A's heights are less spread out than tree B's heights.
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B. Tree A has a lower average height than tree B.
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C. Tree A's heights are more spread out than tree B's heights.
D Tree A has a greater average height than tree B
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Answer 1

A and B

ITS RIGHT FOR ME!!!!!!!

Answer 2

The true statements are:

A. Tree A's heights are less spread out than tree B's heights and

B. Tree A has lower average height than tree B

Step-by-step explanation:

Standard deviation in this case represents the spreading out of heights of the trees, Since tree A has lesser standard deviation given equal to 5 , it is less spread out than B given equal to 12, hence option A. is true.

The average of a quantity is given by mean so, the average height can be compared by the given mean values of the trees. Since, A has lesser mean value (= 25) than B(=60), tree A is said to have lower average height than tree B hence option B. is true.