mean of 20 observation is 17. if 20 is subtracted from the sum of observation, then determine the sum remaining.
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Answered by
4
mean = ∑ x / n
mean = 17
n =20
17 = ∑ x / 20
∑ x = 340
-----------------------------------------------
sum of observation is 340
340 - 20 = 320
=320
therefore the sum remaining is 320
mean = 17
n =20
17 = ∑ x / 20
∑ x = 340
-----------------------------------------------
sum of observation is 340
340 - 20 = 320
=320
therefore the sum remaining is 320
Answered by
4
Mean = sum of the observations/number of observations
17= sum of observations /20
sum of the observations= 17× 20
= 340
20 is subtracted from the sum of observations
=> 340-20
=320.
New sum = 320.
hope it helps...
17= sum of observations /20
sum of the observations= 17× 20
= 340
20 is subtracted from the sum of observations
=> 340-20
=320.
New sum = 320.
hope it helps...
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