Lesson 9
Technological Graphing
Problem 1
Technology required. The data represent the average customer ratings for several items sold online.
- 0.5
- 1
- 1.2
- 1.3
- 2.1
- 2.1
- 2.1
- 2.3
- 2.5
- 2.6
- 3.5
- 3.6
- 3.7
- 4
- 4.1
- 4.1
- 4.2
- 4.2
- 4.5
- 4.7
- 4.8
- Use technology to create a histogram for the data with intervals 0–1, 1–2, and so on.
- Describe the shape of the distribution.
- Which interval has the highest frequency?
Solution
Teachers with a valid work email address can click here to register or sign in for free access to Formatted Solution.
Problem 2
Technology required. The data represent the amount of corn, in bushels per acre, harvested from different locations.
133, 133, 134, 134, 134, 135, 135, 135, 135, 135, 135, 136, 136, 136, 137, 137, 138, 138, 139, 140
- Use technology to create a dot plot and a box plot.
- What is the shape of the distribution?
- Compare the information displayed by the dot plot and box plot.
Solution
Teachers with a valid work email address can click here to register or sign in for free access to Formatted Solution.
Problem 3
- Describe the shape of the distribution.
- How many values are represented by the histogram?
- Write a statistical question that could have produced the data set summarized in the histogram.
Solution
Teachers with a valid work email address can click here to register or sign in for free access to Formatted Solution.
(From Unit 1, Lesson 4.)Problem 4
The dot plot represents the distribution of satisfaction ratings for a landscaping company on a scale of 1 to 10. Twenty-five customers were surveyed.
On average, what was the satisfaction rating of the landscaping company?
Solution
Teachers with a valid work email address can click here to register or sign in for free access to Formatted Solution.
(From Unit 1, Lesson 3.)