A group of students from two schools was asked how many hours of television they
ID: 3039755 • Letter: A
Question
A group of students from two schools was asked how many hours of television they had watched last week. Here are their responses
School A
School B
8
7
1
12
20
10
6
3
7
7
6
7
4
4
8
8
13
17
17
9
. A group of college freshman students was asked how many items they bought online in the last one month. You find that most bought 0 and 5 items, but about 5% of students have been to 10 or more items. Which measure of central tendency should be used to describe this data? Explain why (don’t forget to discuss skewness).
School A
School B
8
7
1
12
20
10
6
3
7
7
6
7
4
4
8
8
13
17
17
9
Explanation / Answer
Here we must use the Median to describe this data as the group is skewed on the right side so we shall not use mean to describe central tendency. Here, median is better to defind the central behavior as it describes the group in two part where each part contains 50% of group members.
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