Descriptive Methods For Quantitative Data - Part 1

Question 1

Descriptive for categorical variables can be measured by

Answer 1

Box plots and frequency tables

Question 2

Univariate statistics for quantitative variable can be presented in ?

Answer 2

(Univariate statistics are a summary of single variable)Histograms , frequency distribution tables

Question 3

Methods for moderate to large data sets

Answer 3

Histograms and frequency distribution tables

Question 4

Histograms

Answer 4

Similar to bar plot but used for quantitative data rather than categorical data . Vertical axis shows either
1. Count of observation ( frequency)
2. Proportion of observation

Question 5

Histograms highlight which characteristics of distribution

Answer 5

Shape- symmetry, number of modes ( peaks)
Center- where is center?
Spread- range, outliers, variation

Question 6

Outliers

Answer 6

Data points that lie outside overall pattern of distribution