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mamaluj [8]
3 years ago
9

What is the first quartile , Q1,of the following distribution ? 24,26,26,27,28,31,33,35,37,38,40,42,43,46,48,55,56

Mathematics
2 answers:
MrRissso [65]3 years ago
5 0

Answer:

A. 27.5

Step-by-step explanation:

We have been given a data set. We are asked to find first quartile of our given data set.

24, 26, 26, 27, 28, 31, 33, 35, 37, 38, 40, 42, 43, 46, 48, 55, 56.

We can see that our given data set is in ascending form and it has 17 data points.

The median of the data set is 9th data point that is 37. The first quartile will be median of lower half.

The 1st quartile will be average of 4th and 5th data point that is:

Q_1=\frac{27+28}{2}

Q_1=\frac{55}{2}

Q_1=27.5

Therefore, the first quartile of the given data set is 27.5 and option A is the correct choice.

Slav-nsk [51]3 years ago
3 0
Q1 = (27+28)/2= 27.5
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