Question 1170499
Okay, let's organize and graph the music practice data.

**1. Organize the Data**

Here's the data in ascending order:

45, 45, 60, 70, 80, 110, 110, 110, 120, 120, 120, 125, 130, 135, 140, 140, 145, 150, 150, 155, 160, 165, 185, 200, 200

**2. Choose a Graph Type**

For this type of data, several graph types are suitable:

* **Histogram:** Shows the frequency distribution of the data, grouped into intervals.
* **Box Plot:** Displays the median, quartiles, and outliers of the data.
* **Dot Plot:** Shows each data point individually on a number line.
* **Stem-and-Leaf Plot:** A combination of a table and a graph that displays the data in its original form.

Let's illustrate with a histogram and a box plot, as they are commonly used for this kind of data.

**3. Histogram**

To create a histogram, we need to choose intervals (bins) for the data. Let's use intervals of 20 minutes.

* **Intervals:**
    * 40-59
    * 60-79
    * 80-99
    * 100-119
    * 120-139
    * 140-159
    * 160-179
    * 180-199
    * 200-219
* **Frequencies:**
    * 40-59: 2
    * 60-79: 2
    * 80-99: 1
    * 100-119: 3
    * 120-139: 5
    * 140-159: 5
    * 160-179: 2
    * 180-199: 1
    * 200-219: 2

**Histogram Description:**

The histogram would have the practice time intervals on the horizontal axis (x-axis) and the frequency (number of students) on the vertical axis (y-axis). Each bar's height represents the number of students who practiced within that interval.

**4. Box Plot**

To create a box plot, we need to find the following values:

* **Minimum:** 45
* **First Quartile (Q1):** 110
* **Median (Q2):** 130
* **Third Quartile (Q3):** 150
* **Maximum:** 200

**Box Plot Description:**

The box plot would show a box extending from Q1 to Q3, with a line marking the median. "Whiskers" extend from the box to the minimum and maximum values (or to values within 1.5 times the interquartile range, with outliers plotted as individual points).

**Key Features You'd Observe in Graphs**

* **Distribution Shape:** You can get a sense of whether the data is symmetrical, skewed, or has any clusters.
* **Central Tendency:** The median in the box plot and the peak of the histogram will give you an idea of the typical practice time.
* **Spread/Variability:** The range and interquartile range show how spread out the data is.
* **Outliers:** The box plot will clearly highlight any outliers (values that are far from the rest of the data).

I hope this helps!