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These are the means and standard deviations for examples of heights from two kinds of trees.

Table:

Tree A - (Mean: 25ft) (Standard deviation: 5ft)

Tree B - (Mean: 60 ft) (Standard deviation: 12 ft)

Select the TWO true statement.

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

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

C. Tree A has a greater average height than tree B.

D. Tree A has a lower average height than tree B.​

Respuesta :

Step-by-step explanation:

Tree A's heights are less spread out than tree B's heights. Tree A has a lower average height than tree Bs

Answer:

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:

A P E X

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.

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