- Xác suất - Phần 1- có lời giải chi tiết

A {NN, NS, SN, SS}

B {NNN, SSS, NNS, SSN, NSN, SNS}

C {NNN, SSS, NNS, SSN, NSN, SNS, NSS, SNN}

D {NNN, SSS, NNS, SSN, NSS, SNN}

A P(A) là số lớn hơn hoặc bằng 0

B \(P\left( A \right) = 1 - P\left( {\overline A } \right)\)

C \(P\left( A \right) = 0 \Leftrightarrow A = \Omega \)

D P(A) là số nhỏ hơn hoặc bằng 1.

A \({1 \over 4}\)

B \({1 \over 8}\)

C \({7 \over 8}\)

D \({1 \over 2}\)

A \({{25} \over {26}}\)

B \({{11} \over {36}}\)         

C \({1 \over 6}\)

D \({{15} \over {36}}\)

A \({{12} \over {216}}\)

B \({1 \over {216}}\)

C \({6 \over {216}}\)

D \({3 \over {216}}\)

A \({1 \over {100}}\)

B \({1 \over {90}}\)

C \({1 \over {45}}\)

D \({1 \over {49}}\)

A \({5 \over {12}}\)

B  \({1 \over 2}\)

C \({3 \over 4}\)

D \({5 \over {36}}\)

A \({1 \over 5}\)        

B \({1 \over {10}}\)

C \({9 \over {10}}\)

D \({4 \over 5}\)

A / \({1 \over 2}\)

B \({1 \over 6}\)        

C \({1 \over {36}}\)

D \({1 \over {216}}\)

A \({{13} \over {36}}\)

B \({{14} \over {36}}\)

C \({1 \over 3}\)

D \({1 \over 6}\)

A \({1 \over 5}\)

B \({1 \over {10}}\)

C \({1 \over {20}}\)

D \({2 \over 5}\)

A \({1 \over m}\)

B \({1 \over {m + n + p}}\)

C /\({1 \over {mn + np + pm}}\)

D \({1 \over {mnp}}\)

A \({5 \over 6}\)

B \({1 \over {60}}\)

C \({{59} \over {60}}\)

D \({1 \over 6}\)

A \({7 \over {21}}\)   

B \({{13} \over {21}}\)                     

C 1

D \({8 \over {21}}\)

A \({5 \over {108}}\)

B \({{23} \over {24}}\)

C \({1 \over {24}}\)

D \({{103} \over {108}}\)

A \({3 \over {28}}\)

B \({{25} \over {28}}\)         

C \({1 \over 8}\)

D \({7 \over 8}\)

A \({3 \over {10}}\)

B \({2 \over 5}\)

C \({7 \over {10}}\)

D \({3 \over 5}\)

A  \({6 \over {23!}}\)

B \({{4!} \over {24!}}\)

C \({{4!4!4!5!5!6!} \over {23!}}\)

D \({{23! - 6} \over {23!}}\)

A \({{11} \over {420}}\)

B \({{11} \over {360}}\)       

C \({{349} \over {360}}\)

D \({{409} \over {420}}\)

A \({5 \over 8}\)

B \({2 \over 3}\)        

C \({3 \over 8}\)

D \({1 \over 3}\)