# Statistics and Data Analysis PRL Quiz 1.

Mishra, Prabhaker; Pandey, Chandra M; Singh, Uttam; Gupta, Anshul; Sahu, Chinmoy; Keshri, Amit. Descriptive Statistics and Normality Tests for Statistical Data. Annals of Cardiac Anaesthesia 22(1):p 67-72, Jan–Mar 2019. |DOI: 10.4103/aca.ACA_157_18

### Question 1: What are the three major types of descriptive statistics mentioned in the paper?

Question 2: As discussed in the paper, which measure of central tendency is most affected by extreme values or outliers?

Question 3:What is the primary purpose of measures of dispersion in descriptive statistics, as described in the paper?

Question 4: According to the paper, what is a disadvantage of using the mode as a measure of central tendency?

Question 5: What is the significance of the standard deviation (SD) in measures of dispersion?

Question 6: How is the standard error used in statistical analysis?

### Question 7: What is the interquartile range (IQR) and how is it calculated?

Question 8. What does the coefficient of variation (CV) measure, and how is it expressed?