A) 1.25, 5
B) 2, 5
C) 2 - 5
D) 1.25, - 5
Correct Answer: D
Solution :
(d): \[\overline{w}=1\overline{x}+k\] and \[{{\sigma }_{w}}\ne 1{{\sigma }_{x}}\] \[\Rightarrow 55=48\,1+k\]__________(1) And \[15=12|1|\]__________(2) From (2), |1| \[=\frac{15}{12}=\frac{5}{4}\Rightarrow 1=1.25\] or \[-1.25\]. If 1 = 1.25, then from (1), \[k=55-48\times 1.25\] \[=-5\] And if 1 = ? 1.25, then from (1), \[k=55-48\times (-1.25)=55+60=115\] Thus, 1 = 1.25 and k = ? 5 and this corresponds to the values given in (d)You need to login to perform this action.
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