RES 710 Week 2 Discussion: Measure of Central Tendency and Variability
Discussion Topic for RES 710 Week 2 Discussion
Students need to contribute SIX substantive posts in this discussion for attendance per week. The substantive posts can be any combination of responses and replies. Please choose six questions to respond. Please respond one question a day for 6 days or two questions a day every other day. Do not post all 6 messages in one day because the system will record your attendance as one day per week only and you will be auto-dropped from the class.
What are measures of central tendency? Explain the importance of measures of central tendency in statistics.
Define the mode, the median, and the mean, and provide example for each.
When planning a research study, what factors influence the descriptive statistics used in the data analysis?
Describe at least two methods used for cleaning data. Discuss the importance of clean data prior to running the main analysis.
How do you identify the shape of a distribution? Discuss how the shape of a distribution can help inform research decisions.
Define the symmetrical distribution, positively skewed distribution, and negative skewed distribution.
Why can’t we use the range to describe diversity in nominal variables?
What are five measures of variability? Explain the importance of measuring variability.
Define variance and standard deviation. How do you calculate the variance and the standard deviation?
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