Statistics Questions with CORRECT Answers (Verified Update)
Q1: What is the definition of descriptive statics?
Answer: Quantitatively described and summarized characteristics of data using central tendency and
dispersion measure
Q2: interval commonly used descriptive statistics
Answer: Mean and SD (but ALL are available)
Q3: quasi-interval commonly used descriptive statistics
Answer: 5 or less = mode and frequency/share 5 or more = mean and SD are commonly used ( ALL
are available )
Q4: ratio scales commonly used descriptive statistics
Answer: Mean and SD are commonly used ( ALL are available )
Q5: bar graph is suitable to ...
Answer: present shares or frequencies of each category of a categorical variable (nominal, ordinal, or
quasi- interval with 5 or less categories) to present shares/frequencies, median or mean
values of multiple variables
Q6: pie chart is suitable to ...
Answer: show the proportions of a whole. Good for categorical data (nominal scale data). No more
than 5-7 categories
Q7: a box plot is suitable for ...
Answer: continuous variables ( interval or ratio scales). to show the distribution, central tendency,
and extreme values of single and multiple variables.
Q8: for normally distributed data the ...... is most commonly used
Answer: mean
Q9: mean is swayed by extreme values but (relatively) ..... is not
Answer: median
Q10: for skewed data ....... is a more useful central tendency measure
Answer: median
Q1: What is the definition of descriptive statics?
Answer: Quantitatively described and summarized characteristics of data using central tendency and
dispersion measure
Q2: interval commonly used descriptive statistics
Answer: Mean and SD (but ALL are available)
Q3: quasi-interval commonly used descriptive statistics
Answer: 5 or less = mode and frequency/share 5 or more = mean and SD are commonly used ( ALL
are available )
Q4: ratio scales commonly used descriptive statistics
Answer: Mean and SD are commonly used ( ALL are available )
Q5: bar graph is suitable to ...
Answer: present shares or frequencies of each category of a categorical variable (nominal, ordinal, or
quasi- interval with 5 or less categories) to present shares/frequencies, median or mean
values of multiple variables
Q6: pie chart is suitable to ...
Answer: show the proportions of a whole. Good for categorical data (nominal scale data). No more
than 5-7 categories
Q7: a box plot is suitable for ...
Answer: continuous variables ( interval or ratio scales). to show the distribution, central tendency,
and extreme values of single and multiple variables.
Q8: for normally distributed data the ...... is most commonly used
Answer: mean
Q9: mean is swayed by extreme values but (relatively) ..... is not
Answer: median
Q10: for skewed data ....... is a more useful central tendency measure
Answer: median
