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Questions and Answers
What is the formula for calculating the mean of grouped data?
What is the formula for calculating the mean of grouped data?
- $\bar{x} = \frac{\sum f \cdot x}{\sum f}$ (correct)
- $\bar{x} = \frac{\sum f \cdot x}{N}$
- $\bar{x} = \frac{\sum x}{N}$
- $\bar{x} = \frac{\sum x}{\sum f}$
What are the measures of central tendency for ungrouped data?
What are the measures of central tendency for ungrouped data?
- Percentile, quartile, decile
- Mean, median, mode (correct)
- Range, variance, standard deviation
- Skewness, kurtosis, frequency
What is the graphical representation used for representing cumulative frequency?
What is the graphical representation used for representing cumulative frequency?
- Bar graph
- Ogive (correct)
- Frequency polygon
- Histogram
What does the cumulative frequency distribution represent?
What does the cumulative frequency distribution represent?
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Which graph is used to represent the relationship between two continuous variables in statistics?
Which graph is used to represent the relationship between two continuous variables in statistics?
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