MCQ
$\int_0^1 \frac{x^2-2}{x^2+1} d x=$
- ✓$1-\frac{3 \pi}{4}$
- B$2-\frac{3 \pi}{4}$
- C$1+\frac{3 \pi}{4}$
- D$2+\frac{3 \pi}{4}$
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The p.d.f. of a c.r.v. $X$ is
$ f(x)=\left\{\begin{array}{c} 6 x(1-x), \quad 0 \leq x \leq 1 \\ 0, \quad \text { elsewhere } \end{array}\right. $
If $P(X<a)=P(X>a)$, then $a=$