a.
To construct: The histogram for the provided data set. Also, check whether the data set is skewed to the right.
a.
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Explanation of Solution
Given:
The data set is given.
Graph:
The histogram is constructed as:
Interpretation:
Here, most of the data is lying on the right side of the graph. Thus, it is skewed to the right.
b.
To find: Whether there any outlier exists.
b.
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Explanation of Solution
From the above constructed histogram, it is clear that there is one value which is on distance of the other values.
The outlier is 151.
c.
To explain: Whether mean and standard deviation or IQR and
c.
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Explanation of Solution
From the above part, it is clear that the outlier exists in the data set. Thus, the IQR and median should be calculated here because these both are least affected by the extreme values.
Chapter 1 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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