Math, asked by tanishyadavjnv, 1 month ago

What is mode,median and mean?​

Answers

Answered by xoxo369ananya123
20

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The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set.

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Answered by Anonymous
20

Answer:

Mean:-

  • Mean is Average of given data.
  • The mean of observations is the sum of the values of all the observations divided by the total number observations.

Mean of Ungrouped data:-

  • { \boxed{ \sf{Mean =  \frac{Sum \:  of  \: observations}{Number  \: of  \: observations}  }}}

Mean of grouped data:-

  • { \boxed{ \sf{Mean =  \frac{ \Sigma f_{i} x_{i}  }{ \Sigma f_{i} } }}}

Mode:-

  • The value which occurs most frequently in a grouped data is called mode

Mode of ungrouped data:-

  • Most repeated term in given observations

Mode of grouped data:-

  • { \boxed{ \sf{Mode = l + \bigg( \frac{ f_{1} -  f_{0}  }{2f_{1} - f_{0} - f_{2}} \bigg) \times h }}}

Median:-

  • If the values x1 in the raw data are arranged in ascending or descending order, then the middle most term in observations are called median

Median of ungrouped data:-

  • Middle most term in given observations when they are arranged in a order.

Median of grouped data:-

  • { \boxed{ \sf{Median = l +   \bigg( \frac{ \frac{n}{2} - cf }{f} \bigg) \times h }}}
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