Question
If the mean of four observations is 20 and when a
constant C is added to each observation the mean becomes 22 the value of C is –Solution
=> Total of four observations = 4 × 20 = 80 Total of four observations after adding C in observation = 80 + 4C => 22 = (80 + 4C)/4 => C = 2
Milk is an example ofÂ
a)Â Â Â Â Â Â Water dispersed in fat
b)Â Â Â Â Â Fat dispersed in water
c)Â Â Â Â Â Â Oil in water...
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