0
When is it misleading to use the mean as a descriptor of a data set?
Wiki User
∙ 8y ago
It is misleading to use the mean as a descriptor of a data set when the median or mode would be more representative of the data set as a whole.
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
Is it true that in large data sets the mean is always one of the data values?
No. Here's one set of data where the mean is not one of the values: a set of 250,000 numbers. 125,000 of them are "1", 125,000 are "3". The mean of this data set is "2", which is not among the data.
The average of a set of data is called what?
the mean.
What happens to the mean of a data set when you add a cluster near one end of the original data set?
The mean of the new data set is shifted from the mean of the original set, in the direction of the added cluster. We note that the same would be true if only a single new element were added.
How do you find the average or mean in a set of data?
First, you add all of the numbers in the set together. Then, you divde the sum by however many numbers there are in the set of data. Your quotient is the average/mean.
If the mean of a set of data is 23 must 23 be one of the data values?
No, for example the set of data 15,20,26,28 has a median that is 20 + 26 /, or 23
What is another word for the mean in a set of data?
The mean of a set of data is also known is the average.
What do you call the average of a set of data?
The average of a set of data is known as its "mean."
Find the mean of the data?
The mean of a set of data is the sum of that data divided by the number of items of data.
Is it true that in large data sets the mean is always one of the data values?
No. Here's one set of data where the mean is not one of the values: a set of 250,000 numbers. 125,000 of them are "1", 125,000 are "3". The mean of this data set is "2", which is not among the data.
Does the mean have to be a member of the set of data?
no. Some mean is a number from the data but some mean is completely different from its data.
When can the mean be the largest value in the data set?
When the data set consistys of a single value.
How do you represent the mean of a set data?
If the set of data are represented by a letter, then the mean is represented by that letter with a bar across its top.
What does mode for the set of data mean?
The mode of the data is the number which occurs most frequently in the given set of data.
What is the mean of the combined data sets if the mean of a data set of 6 is 8 and the mean of a different data set of 6 numbers is 20?
total marks of data set 1 is 6 x 8 = 48 total marks of data set 2 is 6 x 20= 120 now, the total mean of the combined data set is = (48 + 120) / (6 + 6) = 168 / 12 = 14
What is an advantage to using the median when examining a set of data?
The median or mode should be used instead of the mean in distributions with extreme outliers. In such cases, the mean can be a misleading measure of central tendency and the median value or the mode value are typically more accurate measures.
What is the set data structure?
MEAN
How do you find the mean of the data?
Th find the mean of a data set, you add up all the values in the data set and divide this sum by the number of data values. For example, the mean for the data set 2, 5, 6, and 7 is given as 2 plus 5 plus 6 plus 7, which is 20. You divide this sum by number of values in the data set, which is 4 to get 5 as the mean.
