BSNS 112 Exam questions and answers already passed

BSNS 112 Exam questions and
answers already passed

Descriptive statistics - correct answer ✔✔- methods of organizing, summarizing 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