BSNS 112 EXAM PREPARATION NEWEST ACTUAL EXAM COMPLETE
QUESTIONS AND CORRECT ANSWERS VERIFIED ANSWERS
Descriptive statistics - CORRECT ANSWER✅✅✅- methods of organising, summarising
and presenting data in a good form
e.g. graphs, tables, measures
Inferential statistics - CORRECT ANSWER✅✅✅Random sample of data taken from a
population to describe and make inferences about the population
Types of data - CORRECT ANSWER✅✅✅quantitative and qualitative
Quantitative data - CORRECT ANSWER✅✅✅Numerical
e.g. Age in years
Qualitative data - CORRECT ANSWER✅✅✅Grouped or categorical
e.g. S, M, L, XL, XXL
Categorical data (Qualitative) - CORRECT ANSWER✅✅✅Nominal or Ordinal
Numerical data (Quantitative) - CORRECT ANSWER✅✅✅Discrete or Continuous
Frequency - CORRECT ANSWER✅✅✅x
Proportion - CORRECT ANSWER✅✅✅p
Mean - CORRECT ANSWER✅✅✅average
Median - CORRECT ANSWER✅✅✅middle number
, Mode - CORRECT ANSWER✅✅✅most common number
Trimmed mode - CORRECT ANSWER✅✅✅most common number with extreme 5%
trimmed
Central locations - CORRECT ANSWER✅✅✅Mean
Median
Mode
Trimmed Mode
Measures of spread - CORRECT ANSWER✅✅✅Range
Interquartile range
Variance
Range - CORRECT ANSWER✅✅✅Max observation less Minimum
IQR - CORRECT ANSWER✅✅✅Middle 50%
Variance - CORRECT ANSWER✅✅✅Squared deviation around the mean
Standard Deviation (SD) - CORRECT ANSWER✅✅✅average distance observations are
away from the mean
Coefficient of variation - CORRECT ANSWER✅✅✅no units = good for comparisons
relative measure of variability
QUESTIONS AND CORRECT ANSWERS VERIFIED ANSWERS
Descriptive statistics - CORRECT ANSWER✅✅✅- methods of organising, summarising
and presenting data in a good form
e.g. graphs, tables, measures
Inferential statistics - CORRECT ANSWER✅✅✅Random sample of data taken from a
population to describe and make inferences about the population
Types of data - CORRECT ANSWER✅✅✅quantitative and qualitative
Quantitative data - CORRECT ANSWER✅✅✅Numerical
e.g. Age in years
Qualitative data - CORRECT ANSWER✅✅✅Grouped or categorical
e.g. S, M, L, XL, XXL
Categorical data (Qualitative) - CORRECT ANSWER✅✅✅Nominal or Ordinal
Numerical data (Quantitative) - CORRECT ANSWER✅✅✅Discrete or Continuous
Frequency - CORRECT ANSWER✅✅✅x
Proportion - CORRECT ANSWER✅✅✅p
Mean - CORRECT ANSWER✅✅✅average
Median - CORRECT ANSWER✅✅✅middle number
, Mode - CORRECT ANSWER✅✅✅most common number
Trimmed mode - CORRECT ANSWER✅✅✅most common number with extreme 5%
trimmed
Central locations - CORRECT ANSWER✅✅✅Mean
Median
Mode
Trimmed Mode
Measures of spread - CORRECT ANSWER✅✅✅Range
Interquartile range
Variance
Range - CORRECT ANSWER✅✅✅Max observation less Minimum
IQR - CORRECT ANSWER✅✅✅Middle 50%
Variance - CORRECT ANSWER✅✅✅Squared deviation around the mean
Standard Deviation (SD) - CORRECT ANSWER✅✅✅average distance observations are
away from the mean
Coefficient of variation - CORRECT ANSWER✅✅✅no units = good for comparisons
relative measure of variability
