what is the meaning of xi and di
in the statistics
Answers
In mathematics and statistics, deviation is a measure of difference between the observed value of a variable and some other value, often that variable's mean.
The variable Xi accepts various x values. Di stands for the variable's departure from the mean.
assumed mean (a). (Upper Class Limit + Lower Class Limit)/2 Xi=class mark.
Steps of calculating Xi
1. Determine the class's upper limit since xi is the designated class mark.
2. Determine the class' lower limit.
3. Total the two limitations.
4. Next, divide the total by 2.
5. We'll receive a passing grade xi.
The frequency of an event is defined in statistics as the number of times an event fi occurred in the experiment or study.
The sign "D" "d" or "di" denotes the mean deviation, which is the fundamental measure of deviations from a value. Be -a if is the observation and "a" is the fixed value.
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