1.Consider three observations a,ba, ba,b and ccc such that a<b<ca < b < ca<b<c. If the standard deviation of a+2,c+2a+2, c+2a+2,c+2 is ddd, then which of the following is true?a.b2=3(a2+c2)+9d2b^2 = 3(a^2 + c^2) + 9d^2b2=3(a2+c2)+9d2b.b2=3(a2+c2)+3d2b^2 = 3(a^2 + c^2) + 3d^2b2=3(a2+c2)+3d2c.b2=3(a2+c2+d2)b^2 = 3(a^2 + c^2 + d^2)b2=3(a2+c2+d2)d.b2=3(a2+c2)−9d2b^2 = 3(a^2 + c^2) - 9d^2b2=3(a2+c2)−9d2Login to continueOnly logged in users canattempt or see the solution.
