Quartiles

A survey was given to a random sample of $20$ sophomore college students. They were asked, "how many textbooks do you own"

Their responses were : $0, 0, 2, 5, 8, 8, 9, 9, 10, 1,0 1,0 11, 12, 12, 12, 14, 15, 20 \& 25.$ 

Calculate the upper outlier.

A survey was given to a random sample of $20$ sophomore college students. They were asked, "how many textbooks do you own"

Their responses were : $0, 0, 2, 5, 8, 8, 9, 9, 10, 1,0 1,0 11, 12, 12, 12, 14, 15, 20 \& 25.$ 

Calculate the lower outlier.

A teacher wants to examine students' test scores.

Their scores are: $74, 88, 78, 90, 94, 90, 84, 90, 98, and 80.$

Calculate the upper outlier. 

A teacher wants to examine students' test scores.

Their scores are: $74, 88, 78, 90, 94, 90, 84, 90, 98, and 80.$

Calculate the lower outlier. 

Estimate the interquartile range from the following cumulative frequency curve.

Estimate the lower quartile and upper quartile for the following distribution.

What is third quartile?

Calculate the lower quartile of the following data set of values: 

$26, 19, 5, 7, 6, 9, 16, 12, 18, 2, 1.$

Calculate the lower quartile of the following data set of values: 

$20, 19, 21, 22, 23, 24, 25, 27, 26$

Quartile divides the data in a way so that $50\%$ of the estimation lies below the median and $50\%$ lies above it

Quartiles represent the distribution or dispersion of the given data set.