# Summarizing Quantitative Variables by David Spade, PhD

The lecture Summarizing Quantitative Variables by David Spade, PhD is from the course Learn Statistics - Become Data Smart. It contains the following chapters:

• Summarizing Quantitative Variables
• Stem and Leaf Plots
• Shape of a Distribution
• Interquartile Range
• Example: Making a Boxplot
• How we describe Quantitative Variables

### Included Quiz Questions

1. A histogram can be used to summarize the distribution of a quantitative variable.
2. A bar chart can be used to summarize the distribution of a quantitative variable.
3. A contingency table can be used to summarize the distribution of a quantitative variable.
4. A pie chart can be used to summarize the distribution of a quantitative variable.
5. A Venn diagram can be used to summarize the distribution of a quantitive variable.
1. The spread of the distribution
2. The weight of the distribution
3. The beta of the distribution
4. The kappa agreement of the distribution
5. The age of the distribution
1. The upper whisker of a box plot always ends at the maximum, and the lower whisker of a box plot always ends at the minimum.
2. The width of the box gives the interquartile range.
3. The line in the middle of the box gives the value of the median.
4. A box plot hides the number of modes in the distribution.
5. A box plot shows the skew of data through their quintiles.
1. We typically use the mean and the standard deviation to describe the center and spread of a symmetric distribution.
2. We typically use the five-number summary to describe a symmetric distribution.
3. We typically use the median and the interquartile range to describe the center and spread of a symmetric distribution.
4. We typically use the median and the range to describe the center and spread of a symmetric distribution.
5. We typically use the mode and the range to describe the center and spread of a symmetric distribution.
1. Multimodal
2. Unimodal
3. Bimodal
4. Nomodal
5. Infinitymodal
1. 17
2. 12
3. 16
4. 19
5. 23
1. 16.5
2. 12
3. 16
4. 17
5. 19
1. 15
2. 17
3. 12
4. 8
5. 18
1. 11
2. 10
3. 12
4. 13
5. 14

### Customer reviews

(5)
3,4 of 5 stars
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By Mohamad A. on 13. September 2021 for Summarizing Quantitative Variables

The explanation is smooth and clear. However, I think it would have been better if the common sense behind the formulas (especially the standard deviation) was explained in more detail so we can understand how the formulas work a little more deeply.

CONFUSING
By Michalis N. on 11. November 2020 for Summarizing Quantitative Variables

Its Pretty confusing. Ofc I am a person I ve never had any experience with statitics but during the lecture is so easy to lose pace. Lecture number 1 was easier to get because of the Age-Education as paradigm instead of soulless numbers.! In addition its really confusing when the examples are made with data from the previous slide, witch you dont see any more but you require it to proceed.

He is explaining great
By Anton S. on 21. January 2017 for Summarizing Quantitative Variables

He is explaining great ! Little bit fast sometimes, but it is first time that i understand statistics.

Dr
By Warren L. on 15. January 2017 for Summarizing Quantitative Variables

Dr. Spade has a very practical way of explaining these concepts, without confusion. Much detail is provided and the process is smooth. Thanks Doc.