the median of score X1 ;X2 and 2x1 is 6 and X1 < 2x1<X2 ;then X1 =
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Step-by-step explanation:
mean =(x1+x2-------x10)/10
20 = (x1+x2------x10)/10
20*10 = (x1+x2-----x10)
200 = (x1+x2----x10)
the sum of (x1+x2----x10) is 200
now , equation is increasing by 4, it means that the whole equation will increase by 220
then,
new mean ={(x1+x2-----x10)+ 220}/10
new mean =(200+220)/10
new mean = 420/10
new mean = 42
Step-by-step explanation:
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