what is mean, median and mode give formulas also please(explain too)
Answers
Answer:
Step-by-step explanation:
The Mean, Median and Mode are the three measures of central tendency. Mean is the arithmetic average of a data set. This is found by adding the numbers in a data set and dividing by the number of observations in the data set. The median is the middle number in a data set when the numbers are listed in either ascending or descending order. The mode is the value that occurs the most often in a data set and the range is the difference between the highest and lowest values in a data set.
The Mean
x¯¯¯=∑xN
Here,
∑ represents the summation
X represents observations
N represents the number of observations .
The Median
If the total number of observations (n) is an odd number, then the formula is given below:
Median=(n+12)thobservation
If the total number of the observations (n) is an even number, then the formula is given below:
Median=(n2)thobservation+(n2+1)thobservation2
The Mode
Themodeisthemostfrequentlyoccuringobservationorvalue.
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