Concept explainers
(a)
To Explain: the shape of the distribution T
(a)

Explanation of Solution
Given:
X = score on a randomly selected roll of the ball
T= number of tickets gets on a arbitrary selected roll
For every 10 points score one ticket is received it means that
So if every data is divided by the constant, then the shape of the distribution remains unchanged. The distribution is skewed to the right, because the lowest bar is to the right in the histogram and head of higher bars to the right thus T has the same shape as the distribution, skewed to the right.
(b)
To Calculate: the
(b)

Answer to Problem 42E
Explanation of Solution
Given:
X = score on a randomly selected roll of the ball
T= number of tickets gets on a arbitrary selected roll
Calculation:
For every 10 points score one ticket is received it means that
So if every data is divided by the constant, then the center of the distribution will be affected in the same way, so the mean will be divided by that same constant 10. The number of tickets receives on a arbitrary selected roll is average 2.38
(c)
To Calculate: the standard deviation of T
(c)

Answer to Problem 42E
Explanation of Solution
X = score on a randomly selected roll of the ball
T= number of tickets gets on a arbitrary selected roll
Calculation:
For every 10 points score one ticket is received it means that
So if every data is divided by the constant, and then the spread of the distribution T will be affected in the same way, so the standard deviation
Chapter 6 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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