Question

If a data set has 20 data values, the number of values in the upper quartile is

Answer 1

https://brainly.in/question/3371152

Answer 2

Answer:

10

Step-by-step explanation:

The median divides the data set into two quartiles :

Lower quartile and Upper quartile

Median is the mid value of the data Set

Since the total no. of values in data is 20 (Even)

So, Median=$\frac{\frac{n}{2} th+(\frac{n}{2}+1)th}{2}$

Substitute n = 20

Median=$\frac{\frac{20}{2} th+(\frac{20}{2}+1)th}{2}$

Median=$\frac{21th}{2}$

Median=$10.5 th$

So, the median lies between 10th and 11 th term

So, from 1 to 10 the data values are in lower quartile

From 11 to 20 the data values are in Upper quartile

Hence there are 10 values in  the upper quartile