Question 1
The histogram shows the December charges (in $) for 5000 customers from one marketing segment from a credit card company. (Negative values indicate customers who received more credits than charges during the month.) Use the histogram to complete parts a) through c) below.
In this question, range is calculated by subtracting the lowest value from the highest value. So lowest value is -500. And the highest value is 5000. Therefore the range is 5000 -(-500) = 5500
The unusual feature is the inclusion of some negative values.
The shape of the histogram is positively skewed or right skewed. Because the right tail is greater than the left tail. If you want to know more about the skewness, please check the following figure.
Since the graph is right skewed, the mean is greater than the median. As a hint, the median is always at the middle. Depending on the skewness, mean can be less than or greater than the median.
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