Question

 
ғɪɴᴅ ᴛʜᴇ ᴍᴇᴀɴ ᴏғ ғᴏʟʟᴏᴡɪɴɢ ᴅᴀᴛᴀ. 80,85,100,60,71,90

Answer 1

hy mate here is your anshwer=>>>



Mean formula :  ∑fixi÷∑fi
                                        or  
                         Sum of observations ÷ number of observation 

Observations are : 80,85,100,60,71,90
Sum of the observations = 486 
number of observations = 6 

by substituting the above values in the formula 
⇒ 486 ÷ 6
⇒ 81 
∴ mean of the data i.e. 80,85,100,60,71,90 is "81"

Answer 2

HEYA!
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✴ARUTHMETIC MEAN ✴
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✨Mean =


$\frac{sum \: of \: observations \: }{number \: of \: observations}$


Here , the sum of observation = 80 + 85 + 100 + 60 + 71 + 90

= 486

Number of observation = 6


Mean = 486/6

= 81

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