若varepsilon sim B(4,dfrac (1)(2)),则由切比雪夫不等式估计varepsilon sim B(4,dfrac (1)(2))

已知sim E(3),用切比雪夫不等式估计概率sim E(3)________.已知,用切比雪夫不等式估计概率________.

若xi sim N(mu ,(sigma )^2)，则由切贝谢夫不等式估计xi sim N(mu ,(sigma )^2)最多为（）若，则由切贝谢夫不等式估计最

dfrac (qQ)(4pi {varepsilon )_(0)(d)_(1)} B. dfrac (qQ)(2pi {varepsilon )_(0)(d)_

3、随机变量 sim N((2.2)^2) , sim B(10,0.2), 且X与Y相互独立,由切比雪夫不等式估计-|||-(X-4leqslant Yleq

(B) dfrac (lambda )(2pi {varepsilon )_(0)a}. (C) dfrac (lambda )(4pi {varepsilon

设sim pi (3)，根据切比雪夫不等式有sim pi (3)A sim pi (3)B sim pi (3)C sim pi (3)D sim pi

设随机变量 X sim N(mu, sigma^2)，利用切比雪夫不等式估计 P|X-mu|A. $\leq \frac{1}{9}$;B. $\geq \fr

(B) dfrac (9)(4pi {varepsilon )_(0)a}-|||-(C) -dfrac (9)(8pi {varepsilon )_(0)a}

,n) ,则-|||-由切比雪夫不等式,有 (|dfrac (1)(n)sum _(i=1)^n({X)_(i)}^2-(mu )_(2)|geqslant s

,n) ,则-|||-由切比雪夫不等式,有 (|dfrac (1)(n)sum _(i=1)^n({X)_(i)}^2-(mu )_(2)|geqslant c