Consider the following set of test scores: $68,72,65,70,69,74,70,71,67,73,80,72,70,75,77$. Identify the outliers, if any.

Given the data set $12$, $15$, $10$, $18$, $14$, $20$, $13$, $17$, $11$, and $16$, find the midquartile.

A scientist measures the temperature of a chemical reaction and finds it is at the third quartile for all recorded reactions. What does this indicate about the temperature compared to the other reactions?

For a symmetric bell-shaped distribution, which pair correctly names the measure of center and the measure of dispersion used together to describe the distribution?

The ogive shown below displays the percentiles of math scores for a sample of students. Which score marks the $50$th percentile according to the ogive? What does this percentile indicate?

An online retailer tracks how long customers spend in live chat (in minutes) to resolve an issue. For a recent month, the summary for a sample of chats is: $Q_1=18$, $Q_2=24$, $Q_3=35$. Determine the interquartile range ($IQR$).

A pediatric growth chart reports that an $8$-year-old girl's weight of $56.2$ pounds is at the ${40}^{th}$ percentile. Which statement best interprets this percentile?

The measure defined by $Q_3-Q_1$ is best described as which of the following?

The following data set lists the number of hours spent studying by a group of college students for a final exam: $12$, $8$, $15$, $10$, $14$, $9$, $11$, $13$, $7$, $10$, $12$, $8$, $14$, $7$, $13$, $10$, $12$, $9$, $11$, $13$. What is the $50$th percentile value for hours studied? How would you interpret this result?

Determine whether the statement is true or false.

The first quartile represents the value below which $50\%$ of the data fall.