I did the first one.
a. The equation that you need to get DF.
b. Substitute the values in the equation.
c. Add up the rs and the numbers (to simplify).
d. divide both sides by 5 to get r.
e. The value of r is given.
Answer:
B
Step-by-step explanation:
By studying the diagram, you will find they are perpendicular.
The statement that correctly describes the proportion of arm spans that are longer than 170 cm in the stem plot is C. The The proportion of arm spans that are longer than 170 cm is about the same for Class A and Class B.
<h3>How to illustrate the information?</h3>
It should be noted that from the information given, the variability of the arm span shows that they have about same variability.
Therefore, the statement that correctly describes the proportion of arm spans that are longer than 170 cm in the stem plot is C. The The proportion of arm spans that are longer than 170 cm is about the same for Class A and Class B.
Learn more about stem plot on:
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Answer:
x=-8
x=-4
Step-by-step explanation:
