If the mean and variance of the frequency distribution .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-baqh{text-align:center;vertical-align:top} are 9 and 15.08 respectively, then the value of $\alpha^2+\beta^2-\alpha\beta$ is ___________.

Question

If the mean and variance of the frequency distribution

are 9 and 15.08 respectively, then the value of $\alpha^2+\beta^2-\alpha\beta$ is ___________.

Correct Answer

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