Answer: The correct answer would be 0.58.
The value of r of a set of data tells us how close the values are to the line of regression of the data. If you add in an outlier, it would make the overall r value of the points further from the line. In other words, it would go further from 1.
In this case, our initial r value was positive, so it makes sense to keep it positive. 0.58 would be the best choice.
I believe the correct answer here would be C. x=10/3 because it is the only proportional answer.
Answer:
-1 ≤ x ≤8 (don't care about the equal sign)
Step-by-step explanation:
-6+4≤2x≤12+4
=-2≤2x≤16
=-1≤x≤8
Answer:
mean = 172.72cm and variance = 645.16
Step-by-step explanation:
1 inch = 2.54 centimetres
mean = 68 * 2.54 = 172.72 cm
standard deviation = 10 *2.54 = 25.4 cm
variance = square of standard deviation
variance = 25.4 * 25.4
variance = 645.16 cm
