Question

Từ tập hợp các chữ số X = \(\left\{1;2;3;4;5\right\}\)chọn ngẫu nhiên 3 chữ số để tạo thành số có 3 chữ số . Tìm xác xuất để được một số chẵn

Answer 1

X=0;1;2;3;4;5" role="presentation" style="border:0px; color:rgb(0, 0, 0); direction:ltr; display:inline; float:none; font-family:georgia; font-size:medium; line-height:normal; margin:0px; max-height:none; max-width:none; min-height:0px; min-width:0px; padding:0px; position:relative; white-space:nowrap; word-wrap:normal" class="MathJax">X=0;1;2;3;4;55.5!" role="presentation" style="border:0px; color:rgb(0, 0, 0); direction:ltr; display:inline; float:none; font-family:georgia; font-size:medium; line-height:normal; margin:0px; max-height:none; max-width:none; min-height:0px; min-width:0px; padding:0px; position:relative; white-space:nowrap; word-wrap:normal" class="MathJax">5.5!X=0;1;2;3;4;5" role="presentation" style="border:0px; color:rgb(0, 0, 0); direction:ltr; display:inline; float:none; font-family:georgia; font-size:medium; line-height:normal; margin:0px; max-height:none; max-width:none; min-height:0px; min-width:0px; padding:0px; position:relative; white-space:nowrap; word-wrap:normal" class="MathJax">X=0;1;2;3;4;5C6002(cách)." role="presentation" style="border:0px; color:rgb(0, 0, 0); direction:ltr; display:inline; float:none; font-family:georgia; font-size:medium; line-height:normal; margin:0px; max-height:none; max-width:none; min-height:0px; min-width:0px; padding:0px; position:relative; white-space:nowrap; word-wrap:normal" class="MathJax">C6002(cách).
C3842" role="presentation" style="border:0px; color:rgb(0, 0, 0); direction:ltr; display:inline; float:none; font-family:georgia; font-size:medium; line-height:normal; margin:0px; max-height:none; max-width:none; min-height:0px; min-width:0px; padding:0px; position:relative; white-space:nowrap; word-wrap:normal" class="MathJax">C3842p1=C3842C6002" role="presentation" style="border:0px; color:rgb(0, 0, 0); direction:ltr; display:inline; float:none; font-family:georgia; font-size:medium; line-height:normal; margin:0px; max-height:none; max-width:none; min-height:0px; min-width:0px; padding:0px; position:relative; white-space:nowrap; word-wrap:normal" class="MathJax">p1=C3842C6002p=1−p1=1−C3842C6002" role="presentation" style="border:0px; color:rgb(0, 0, 0); direction:ltr; display:inline; float:none; font-family:georgia; font-size:medium; line-height:normal; margin:0px; max-height:none; max-width:none; min-height:0px; min-width:0px; padding:0px; position:relative; white-space:nowrap; word-wrap:normal" class="MathJax">p=1−p1=1−C2384C2600