The median of 15, 17, 13, 19, 20, 33, 22, 12, 18, and ◼ is 18.5. Is it possible to determine the missing value?
2 answers:
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For skewed data displays, the median is often a better estimate of the center of distribution than the mean because the former is unaffected by large numbers.
<h3>What is mean?</h3>Mean refers to the average of set of two or more numbers.
Mean of a set having 'n' numbers =
Median refers to the middle-most value of a list of numbers, arranged either in ascending or descending order.
Median =
Now,
- Since it takes the average of all the values in the data set, the mean is the most widely used measure of central tendency.
- Because it is unaffected by exceptionally big numbers, the median performs better than the mean when analyzing data from skewed distributions.
Hence, For skewed data displays, the median is often a better estimate of the center of distribution than the mean.
To learn more about mean and median, refer to the link:brainly.com/question/6281520
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Answer:
There were 440 Standard version of songs downloaded in Web music store.
Step-by-step explanation:
Given,
Total number of songs downloaded = 1310
Total size of the downloaded songs = 4752 MB
Size of standard version of song = 2.1 MB
Size of high quality version of song = 4.4 MB
Solution,
Let the number of standard version of song be 'x'.
And also let the number of high quality version of song be 'y'.
Now, total number of songs is the sum of total number of standard version of song and total number of high quality version of song.
On framing the above sentence in equation form, we get;
Now, Total size of the downloaded songs is the sum of total number of standard version of song multiplied with size of standard version of song and total number of high quality version of song multiplied with size of high quality version of song.
On framing the above sentence in equation form, we get;
Multiplying with 10 on both side, we get;
Now multiplying equation 1 by 21, we get;
Now subtract equation 3 from equation 2, we get;
On substituting the value of y in equation 1, we get the value of x;
Hence There were 440 Standard version of songs downloaded in Web music store.