If the first quartile is 10 and the third quartile is 30, what is the interquartile range?

Which quartile corresponds to the 75th percentile of a dataset?

What quartile represents the lower boundary of the middle 50% of a dataset?

In a positively skewed distribution, where is the median in relation to the first quartile?

Which quartile is also known as the upper quartile?

In a perfectly symmetrical distribution, where is the median in relation to the first and third quartiles?

Which quartile is also known as the lower quartile?

Which quartile represents the upper boundary of the middle 50% of a dataset?

In a negatively skewed distribution, where is the median in relation to the third quartile?

What quartile is equivalent to the 50th percentile of a dataset?