Let x_1, x_2, . . ., x_{11} be the observations satisfying \sum_{{i=1}}^{{11}} (x_i-4) =22 and \sum_{{i=1}}^{{11}} (x_i-4) ^2=154. If the mean and variance of the observations are \alpha and \beta, then the quadratic equation having the roots \frac{\alpha}{\beta} and \frac{\beta}{\alpha} is [AP EAPCET 23 May 2025 S2]

Correct Answer is : 15x2−34x+15=0

Statistics

Section: Mathematics

Question : 2 of 16

Marks: +1, -0

Let x1,x2,...,x11 be the observations satisfying

∑

i=1

(xi−4)=22 and

∑

i=1

(xi−4)2=154. If the mean and variance of the observations are α and β, then the quadratic equation having the roots ‌

and ‌

[AP EAPCET 23 May 2025 S2]

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