Questions: Question 12 of 13 ( 9 points) Question Attempt: 1 of Unlimited Drug concentrations: A sample of 10 people ingested a new formulation of a drug. Six hours later, the concentrations in their bloodstreams, in nanograms per milliliter, were as follows. 3.0 2.2 1.7 1.8 2.6 2.8 1.9 4.3 3.1 3.2 Part 1 of 2 (a) Construct a dotplot for the given sample.

Solution Steps

To construct a dotplot for the given sample, we will plot each data point on a number line. Each occurrence of a data point will be represented by a dot above its corresponding value on the number line. This visual representation will help us understand the distribution of the drug concentrations in the sample.

We are given a sample of drug concentrations in the bloodstreams of 10 people, measured in nanograms per milliliter. The task is to construct a dotplot for this data.

First, let's list the given concentrations in ascending order to make it easier to construct the dotplot:

• 1.7
• 1.8
• 1.9
• 2.2
• 2.6
• 2.8
• 3.0
• 3.1
• 3.2
• 4.3

A dotplot is a simple graphical representation where each data point is represented by a dot above its corresponding value on a number line.

1. Draw a horizontal number line: Label it with the range of data values, from 1.5 to 4.5, to cover all the given concentrations.
2. Place a dot for each data point: For each concentration value, place a dot above the corresponding number on the number line. If a value appears more than once, stack the dots vertically.

Here's how the dotplot would look:

4.5 | 
4.0 | 
3.5 | 
3.0 |        •
2.5 |    •   •
2.0 | •  •
1.5 | •  •  •
    -------------------
     1.5 2.0 2.5 3.0 3.5 4.0 4.5

Final Answer