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What is 2k rule?
The 2k or 2 to K rule is used to determine the number of classes for a frequency distribution. The 2k rule should be used as a guide more than a dictator of determining the number of classes for a frequency distribution.
What is grouping of data into classes giving the number of observation in each class?
frequency distribution
What is a tabular summary of a set of data showing the fraction of the total number of items in several classes?
Frequency distribution.
What is the difference of frequency distribution and relative frequency distribution?
A frequency distribution lists each value in the distribution and the number times it appears, while a relative frequency distribution reports the proportion of cases reporting each value
In a frequency distribution what is the number of observation in a class called?
Class Frequency
What is 2k rule?
The 2k or 2 to K rule is used to determine the number of classes for a frequency distribution. The 2k rule should be used as a guide more than a dictator of determining the number of classes for a frequency distribution.
What is grouping of data into classes giving the number of observation in each class?
frequency distribution
What is a tabular summary of a set of data showing the fraction of the total number of items in several classes?
Frequency distribution.
Why are unequal class intervals used in frequency distribution?
To make the graph symmetrical
What is the difference of frequency distribution and relative frequency distribution?
A frequency distribution lists each value in the distribution and the number times it appears, while a relative frequency distribution reports the proportion of cases reporting each value
What is grouped frequency distribution?
If the observations are grouped together into classes, then the number of observations for each class gives the grouped frequency distribution (FD). This kind of FD is particularly important when the data are continuous so that you are likely to have very small frequencies for a very large number of values.
What kind of frequency distribution graph shows the frequenciesClassrooms in the psychology department are numbered from 100 to 120. A professor records the number of classes held in each room during?
A histogram would be the most appropriate type of frequency distribution graph to show the frequencies of classes held in each psychology department room. Each classroom number (100-120) would be represented on the x-axis, and the frequency of classes held in that room would be shown on the y-axis.
Why use unequal class intervals in a frequency distribution?
they may be necessary in certain situations to avoid a large number of empty ,or almost empty, classes.
In a frequency distribution what is the number of observation in a class called?
Class Frequency
How is a frequency distribution converted to a relative frequency distribution?
The relative frequency of a class is the frequency of the class divided by the total number of frequencies of the class and is generally expresses as a percentage.
What is the definition of the number of occurrences in a class?
Frequency Distribution
What is the difference between absolute frequency and relative frequency?
absolute frequency is a term decribing the total number of trials you did. a relative frequency is the number of measurements in an interval of a frequency distribution. or the ratio of the number of times an event occurs in a series of trials of a chance experiment to the number of trials of the experiment performed. so the difference is one is the total trials, and the other...well it depends on which definition you picked...
