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bandiadummy8595
25.01.2020 •
Mathematics
If we collect a large sample of blood platelet counts and if our sample includes a single outlier, how will that outlier appear in a histogram?
a. the outlier will appear as a tall bar near one side of the distribution.
b. since a histogram shows frequencies, not individual data values, the outlier will not appear. instead, the outlier increases the frequency for its class by 1
c. the outlier will appear as the tallest bar near the center of the distribution
d. the outlier will appear as a bar far from all of the other bars with a height that corresponds to a frequency of 1.
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Ответ:
D. The outlier will appear as a bar far from all of the other bars with a height that corresponds to a frequency of 1.
Step-by-step explanation:
An histogram measures how many times each value appears in the set we are studying. That is, it is a frequency measure.
Suppose we have the following set:
S = {1,1,1,1,1,1, 2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,100}
1 appears 6 times. That means that when the X axis is 1, the y axis is 6.
2 appears 8 times. The means that when the X axis is 2, the y axis is 8.
...
100 appears 1 time. This means that when the X axis is 100, the y axis is 1. The X is the outlier, and it is quite far from the other values.
So the correct answer is:
D. The outlier will appear as a bar far from all of the other bars with a height that corresponds to a frequency of 1.
Ответ: