BSNS 112 Exam Preparation Questions and Correct Answers/ Latest Update / Already Graded

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BSNS112 exam Questions and Correct
Answers/ Latest Update / Already
Graded
What does quantitative data use?


Ans: Means




What is discrete data?


Ans: Quantitative. Measured in specific values




What is continuous data?


Ans: Quantitative. Measure in infinite values




What does qualitative data use?


Ans: Proportions




What is ordinal data?

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Ans: Qualitative. Conveys a ranking




What is nominal data?


Ans: Qualitative. Uses labels (no ranking)




What variables does a cross tabulation table use?


Ans: Categorical and categorical




What variables does a scatter plot use?


Ans: Numerical and numerical




What variable(s) does a frequency table use?


Ans: One categorical variable




What variables does a stacked/clustered bar chart use?

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Ans: Categorical and categorical




What variables does a relative frequency histogram use?


Ans: Categorical and numerical




Define mean


Ans: Simple average




Define median


Ans: Middle value when data is ranked




Define mode


Ans: Most frequent value




Define trimmed mean

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Ans: Average when most extreme 5% of data is cut




Define range


Ans: maximum - minimum




Define interquartile range


Ans: 75th percentile - 25th percentile




Define variance


Ans: spread of data around mean (σ²)




What happens when standard deviation increases?


Ans: Graph widens




Define coefficient of variation