Math, asked by sahukarisampth77073, 9 months ago

find the mean of 1 1/5 , 2 1/5 , 3 1/5 , 4 1/5 , 5 1/5​

Answers

Answered by adi7829
2

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Answered by gautamkumar118
2

Step-by-step explanation:

Sum \: of \: all\: observation \:  =  1 \frac{1}{5}  + 2 \frac{1}{5}  + 4 \frac{1}{5}  + 5 \frac{1}{5}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: =  \frac{6 }{5}  +  \frac{11}{5}  +  \frac{21}{5}  +   \frac{26}{5}  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    =  \frac{6 + 11 + 21 + 26}{5}  =  \frac{64}{5}   \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = \frac{64}{5} \\  \\  Number \: of \: observation = 4 \\ \:  Mean \:  =  \frac{sum \: of \: all\: observation }{number \: of \: observstion}  =  \frac{\frac{64}{5}}{4}  \\  \\ Hence, \: \boxed{Mean \:  = \frac{16}{5} =3\frac{1}{5}}

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