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

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

Which quartile is also known as the lower quartile?

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

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

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

Which quartile is also known as the upper quartile?

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

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

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