Find the qartiles of the form data 2,4,5,3,1,8
Answers
Answer:
In these number there are 2 qartiles are 5 and 8
Answer:
hope it helpss you
Step-by-step explanation:
Find the first and third quartiles of the data set {3, 7, 8, 5, 12, 14, 21, 13, 18}.
First, we write data in increasing order: 3, 5, 7, 8, 12, 13, 14, 18, 21.
Quartile1.PNG
As on the previous page, the median is 12.
Therefore, the lower half of the data is: {3, 5, 7, 8}.
The first quartile, Q1, is the median of {3, 5, 7,8}.
Since there is an even number of values, we need the mean of the middle two values to find the first quartile:
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Similarly, the upper half of the data is: {13, 14, 18, 21}, so
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Example 2: Find the first and third quartiles of the set {3, 7, 8, 5, 12, 14, 21, 15, 18, 14}.
Note that here we consider the two 14's to be distinct elements and not representing the same item; consider this like you obtained a score of 14 on two different quizzes.
First, we write the data in increasing order: 3, 5, 7, 8, 12, 14, 14, 15, 18, 21.
As before, the median is 13 (it is the mean of 12 and 14 — the pair of middle entries).
Therefore, the lower half of the data is: {3, 5, 7, 8, 12}Notice that 12 is included in the lower half since it is below the median value.
Then Q1 = 7 (there are five values in the lower half, so the middle value is the median). Similarly, the upper half of the data is: {14, 14, 15, 18, 21}, so Q3 = 15.