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What is a frequency table used for?

To display data


What table is used to group data into intervals?

Frequency Distribution Table


What graph is used when data is condensed into a frequency table?

A histogram is used when data is condensed into a frequency table. It displays the frequency of data within fixed intervals or bins, providing a visual representation of the distribution of the data.


How is a frequency distribution used?

it is used to find mean<median and mode of grouped data


A grouped frequency distribution is used when the range of data values is relatively small. True or false?

False. When the range is large you would use a grouped frequency distribution.


How many types are there of frequency distribution?

Introduction:Frequency distribution is used to compress and summarize the whole data by grouping the data into classes and records the data points that fall in each class. The frequency distribution is considered as the base for descriptive statistics and they are also used to define the ordinal, nominal and the interval data. Frequency distribution is the comfortable way of grouping and organizing the data.Example of Frequency Distribution:Consider the frequency table for the students in a class where the data has been grouped according to the height of the students. Range of height Total number of student's cumulative frequency3.0 - 4.5 feet 15 154.5 - 5.0 feet 20 355.0 - 6.5 feet 25 506.5 - 7.0 feet 30 80In the case of nominal data the use of the contingency table is required. The frequency distributions are used to present the data graphically.Types of Frequency Distributions:There are three types of frequency distributions. Cumulative frequency distribution,Grouped frequency distribution,Cumulative Grouped frequency distribution.Cumulative frequency distribution (type 1):The cumulative frequency can be found from the frequency distribution by adding the cumulative frequency column. The highest cumulative frequency should be equal to the total number of frequenciesTemperature Frequency Cumulative frequency47 3 2246 3 1945 4 1544 3 1243 3 9Grouped frequency distribution (type 2):The grouped frequency distribution can be formed by grouping the values together into the class intervals. The range can be calculated using the maximum and the minimum values.Data set for temperature45 48 47 43 4442 45 43 46 4645 47 46 47 4543 47 45 47 4644 43 44 46 47The grouped frequency distribution is given byClass interval midpoint frequency45- 47 46 1542 - 44 43 7Cumulative grouped frequency distribution (type 3):In cumulative frequency distribution the cumulative frequency column is added to the grouped frequency distribution so that we can get the cumulative grouped frequency distribution.Class interval midpoint frequency Cumulative frequency45- 47 46 15 2242 - 44 43 7 7


What is utility of cumulative frequency curve?

The main utility of a cumulative frequency curve is to show the distribution of the data points and its skew. It can be used to find the median, the upper and lower quartiles, and the range of the data.


Can a histogram can have categorical data?

No, a histogram is not suitable for categorical data because it represents the distribution of continuous or discrete numerical data through bins. Instead, bar charts are used for categorical data, as they effectively display the frequency of each category. Histograms show how data falls into ranges, while bar charts highlight distinct categories.


What is high modality?

it is a strong word that is used in expositions and arguments if data is in the form of frequency distribution then the modal range is the interval containing the highest frequency of observations


What is used to describe data and what is used to display data in computer?

what is used to describe data and what is used to display data in compuier


Why are unequal intervals used in a frequency distribution?

The most important thing in creating intervals for a frequency distribution is that the intervals used must be non-overlapping and contain all of the possible observations. They are often equal intervals, but sometimes unequal ones are used. It all depends on the data.


Why a histogram is better for interval and ratio data?

A histogram is better for interval and ratio data because it effectively visualizes the distribution of continuous numerical values, allowing for an easy interpretation of frequency and patterns within the data. Unlike bar charts, which are used for categorical data, histograms display the data in bins, enabling the representation of the underlying distribution shape, central tendency, and variability. This is particularly useful for identifying trends, outliers, and the overall spread of the data in interval and ratio scales.

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