Pada seperangkat kartu bridge terdapat 4 buah bentuk, yaitu keriting, sekop, hati, dan wajik. Dari setiap bentuk, terdapat masing-masing 13 buah kartu.
Jadi, total terdapat 4 × 13 = 52 buah kartu.
Oleh karena itu, pada pengambilan sebuah kartu bridge didapatkan banyaknya anggota ruang sampel adalah n(S) = 52.
Kemudian, perhatikan bahwa pada seperangkat kartu bridge terdapat 4 buah bentuk, yaitu keriting, sekop, hati, dan wajik. Dari setiap bentuk, terdapat satu buah kartu King. Jadi, banyaknya kartu King ada 4 buah, yaitu K keriting, K sekop, K hati, dan K wajik.
Sementara itu, kartu yang berwarna merah hanyalah kartu hati dan kartu wajik.
Jadi, kartu King yang merah adalah K hati dan K wajik.
Misalkan A adalah kejadian terambil kartu King merah, maka
A = {K hati, K wajik}.
Jadi, n(A) = 2.
Kemudian, peluang terambil kartu King merah adalah
![begin mathsize 14px style P open parentheses A close parentheses equals fraction numerator n open parentheses A close parentheses over denominator n open parentheses S close parentheses end fraction equals 2 over 52 equals 1 over 26 end style](data:image/png;base64,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)
Perhatikan bahwa
![begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell P open parentheses A close parentheses plus P open parentheses A to the power of c close parentheses end cell equals 1 row cell 1 over 26 plus P open parentheses A to the power of c close parentheses end cell equals 1 row cell P open parentheses A to the power of c close parentheses end cell equals cell 25 over 26 end cell end table end style](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHkAAABcCAYAAABKmxrMAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAthfvO6wAABBNJREFUeNrtnD1oFEEUx5cjBDmCcEgIIYUgIUUQSSMWIjbBQoJIQEKwkjRiZRdCCCJ2FiJBbMMRgiBBgljYWaQQIYQUFkEQCxGRgFgdIgfrG3wXh83Mfn/Mx/8Hf7jbm11m5t187psXBNlZIa3muGclaI48eR5wjfSV9NuQslTODdKLnPdu8f025blN+kGaMaQshZknhaw+6RdpndTi34dIn0lnYp4hKuOp5jdx3yfScIq8hIbk+RYbtEhZsjBFWiMdVGXkB6Rl6fs4aY80x9+XuALj2GfpWOfnlGXkqvP8mHS/YFmysEm6k6H8mXlJuhm5ti11S9tS5am4S3pE+k46rUkzx88py8hV53mVK75IWfJQmZFF9zMRuSYmHB3+LMamEc29o9zFtHn8m48Z445KLGTVeZ7kZ4SKrjmuLGGCGjGyGMN6ke+iK+pK1/ox93elFnWb9Dwm7Z8clRI2nOcsZTG2JV+SKlNU3AfSQ/63JlXYZdLbyLj4sWDFhIbl2QkjL5I2EtKoxq0WV46q5Y0qnjHC3V8ZhawrzzriymJkd51mpqiaxCxrNgY2eflR5cSrrjwHrky8XpGuJ6SJLkcmeLnSUqRd0LSyZ7xEKKOQdeVZR9qyGGPkn6RTCWmGeTY72FjYIc1q0o7zJoTMGOmwxA2EOvKso+yyxHXztePbtqZpZamNPBv0a5GdKRvybGpZAAAAAAAAAAAA0DCV+yWB5qncLwmYA4wMIwMYGcDIAEYGMDIOvLluZBx4K8m4Zfsl4cAbeoVjcODNAyPjwJsHRsaBN8vHdRx4M8wAWVRWIXHgzYPuGgfePDAyDrx5YGQcePMAHHgDx+DAW8YxaJdnlLu85FCtQUWreUL6xmnfp+hWqwYH3lLyhnRVGs+WFBMPYfR3pCvSTHY2slwBFhHdjBCIveR7qBp3OKuYqOwHJ7cZgcW8Dk6+HOjx+HvAn8ULhAuoKvsYiZld9nn9OiUtS3YUfwZgMGO8HJnU/C62+YYi18QboS+oOjvocCvtxKTp8lgtI14Y7KH67BmDzyekmeY19LTU8rcC/S4TMIy0b1Qu8lq5xy1/BlUHAAAAAAAAAAAAAAAArpPGn67ICRVgAGn86WBQx1D508HIjqHyp4ORHUPlTxfymC3828U7e7zStZQ4f7oBbf4DCE9ZOGdYRpI/XZRB5ARvsS2OVxp/uijiHPahrwa2MY5XGn+6jeC/0+S54J/r84KLBnQtjleWjQ6xdj7iyZcYjxddbaWuxfECClyN4wUkXI3jBRiX43gBxsU4Xk3ETDMal+N4gQyzW1vjeAHG5ThegHExjhfICeJ4eYJtcbxsjpkGUoKYaR6CmGkegJhpHoCYaQ6DmGmOg5hpjoOYaZ6MwYiZ5jilxkz7Cx/7T0mXyWiVAAACtHRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiPjxtdGFibGUgY29sdW1uYWxpZ249InJpZ2h0IGNlbnRlciBsZWZ0IiBjb2x1bW5zcGFjaW5nPSIwcHgiPjxtdHI+PG10ZD48bWk+UDwvbWk+PG1mZW5jZWQgc2VwYXJhdG9ycz0ifCI+PG1pPkE8L21pPjwvbWZlbmNlZD48bW8+KzwvbW8+PG1pPlA8L21pPjxtZmVuY2VkIHNlcGFyYXRvcnM9InwiPjxtc3VwPjxtaT5BPC9taT48bWk+YzwvbWk+PC9tc3VwPjwvbWZlbmNlZD48L210ZD48bXRkPjxtbz49PC9tbz48L210ZD48bXRkPjxtbj4xPC9tbj48L210ZD48L210cj48bXRyPjxtdGQ+PG1mcmFjPjxtbj4xPC9tbj48bW4+MjY8L21uPjwvbWZyYWM+PG1vPis8L21vPjxtaT5QPC9taT48bWZlbmNlZCBzZXBhcmF0b3JzPSJ8Ij48bXN1cD48bWk+QTwvbWk+PG1pPmM8L21pPjwvbXN1cD48L21mZW5jZWQ+PC9tdGQ+PG10ZD48bW8+PTwvbW8+PC9tdGQ+PG10ZD48bW4+MTwvbW4+PC9tdGQ+PC9tdHI+PG10cj48bXRkPjxtaT5QPC9taT48bWZlbmNlZCBzZXBhcmF0b3JzPSJ8Ij48bXN1cD48bWk+QTwvbWk+PG1pPmM8L21pPjwvbXN1cD48L21mZW5jZWQ+PC9tdGQ+PG10ZD48bW8+PTwvbW8+PC9tdGQ+PG10ZD48bWZyYWM+PG1uPjI1PC9tbj48bW4+MjY8L21uPjwvbWZyYWM+PC9tdGQ+PC9tdHI+PC9tdGFibGU+PC9tYXRoPr+/2UkAAAAASUVORK5CYII=)
Oleh karena itu, peluang terambil kartu bukan King merah adalah
.
Jadi, jawaban yang tepat adalah B.