13,14,29,26,41,53,60,7,89,14
What is the first quartile from this data set?
A.11.5
B.13.75
C.37
D.50.75
I think a
Nope.
7, 13, 14, 14, 26, 29, 41, 53, 60, 89
http://www.mathsisfun.com/data/quartiles.html
Yes I put it in order and got a. Isn't that correct
Dividing the total number by 4:
10/4 = 2.5
That means that the first quartile ends between 13 and 14.
Then it will be 13.75
That's the closest, but I believe that should be 13.5
In order to find the first quartile from this data set, we need to organize the numbers in ascending order.
The data set in ascending order is: 7, 13, 14, 14, 26, 29, 41, 53, 60, 89.
Now, we need to determine the position of the first quartile. Since there are 10 numbers in the data set, the first quartile would be located at the 25th percentile, or the 2.5th position (10 * 0.25 = 2.5).
To find the first quartile, we take the average of the 2nd and 3rd numbers in the ordered data set. In this case, the 2nd number is 13 and the 3rd number is 14.
Calculating the average: (13 + 14) / 2 = 27 / 2 = 13.5.
Therefore, the correct answer is A. 11.5.