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What is grouping of data into classes giving the number of observation in each class?
frequency distribution
When drawing frequency distribution histograms what does it mean when the distribution is broken?
A histogram is "a representation of a frequency distribution by means of rectangles whose widths represent class intervals and whose areas are proportional to the corresponding frequencies.Broken distribution means that no data point falls in that class.
Can frequency distribution contain qualitative data?
frequency distribution contain qualitative data
When data is collected using a qualitative nominal variable male or female what is true about a frequency distribution that summarizes the data?
class midpoints can be computed
What is the modal class in a grouped data if there are two classes with the same highest frequency?
They are both modal classes - the distribution is bi-modal.
What is grouping of data into classes giving the number of observation in each class?
frequency distribution
Can frequency distribution contain qualitative data?
frequency distribution contain qualitative data
When drawing frequency distribution histograms what does it mean when the distribution is broken?
A histogram is "a representation of a frequency distribution by means of rectangles whose widths represent class intervals and whose areas are proportional to the corresponding frequencies.Broken distribution means that no data point falls in that class.
For a symmetric distribution of data the mean is equal to which other quantity?
Median.
Is frequency polygon proportional to class frequency?
No, a frequency polygon is a type of data visualization that uses line segments to connect points representing the frequencies of different classes. It shows the distribution of data values, but it does not necessarily represent the actual class frequencies.
When data is collected using a qualitative nominal variable male or female what is true about a frequency distribution that summarizes the data?
class midpoints can be computed
What is an 'ungrouped frequency table'?
A frequency distribution of numerical data where the raw data is not grouped.
What is a frequency distribution for a set of data?
anonymously
What is data handling in maths?
frequency distribution
What is the modal class in a grouped data if there are two classes with the same highest frequency?
They are both modal classes - the distribution is bi-modal.
Is it important to keep the width of each class the same in a frequency distribution?
Yes, it is important to keep the width of each class the same in a frequency distribution to ensure clarity and consistency in data representation. Uniform class widths allow for easier comparison of frequencies across categories, making it simpler to identify patterns and trends in the data. Variations in class width can lead to misinterpretations and skewed analyses.
What are the Steps involved in construction of frequency distribution table?
To construct a frequency distribution table, follow these steps: Collect Data: Gather the raw data that you want to analyze. Determine Class Intervals: Decide on the number of classes and the range for each class interval, ensuring they cover the entire data set without overlap. Tally the Frequencies: Count how many data points fall into each class interval and record the frequency for each. Create the Table: Organize the class intervals and their corresponding frequencies into a structured table format for easy reference and analysis.
