Created
May 1, 2019 22:57
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2 selection situations validation
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//two pharse random -- 2/3 | |
var A = ["R","R"], B = ["R","B"], C = ["B","B"]; | |
var count = 0, result_ball1_red = 0, result_ball1and2_red = 0, result_ball1red_ball2blue = 0, result_ball1_blue = 0, result_ball1and2_blue = 0, result_ball1blue_ball1red = 0; | |
var randomBoxNumber, randomBallNumber, FirstBall, SecondBall; | |
for (count = 1; count <= 1000000; count++) | |
{ | |
randomBoxNumber = Math.floor(Math.random() * 3 ) + 1; | |
randomBallNumber = Math.floor(Math.random() * 2); | |
switch (randomBoxNumber) | |
{ | |
case 1: | |
FirstBall = A[randomBallNumber].toString(); | |
SecondBall = A[Math.abs(randomBallNumber - 1)].toString(); | |
break; | |
case 2: | |
FirstBall = B[randomBallNumber].toString(); | |
SecondBall = B[Math.abs(randomBallNumber - 1)].toString(); | |
break; | |
case 3: | |
FirstBall = C[randomBallNumber].toString(); | |
SecondBall = C[Math.abs(randomBallNumber - 1)].toString(); | |
break; | |
default: | |
alert ("!"); | |
} | |
//console.log(FirstBall +" "+ SecondBall); | |
if (FirstBall == "R") {result_ball1_red += 1;} | |
if (FirstBall == "R" && SecondBall == "R") {result_ball1and2_red += 1;} | |
if (FirstBall == "R" && SecondBall == "B") {result_ball1red_ball2blue += 1;} | |
if (FirstBall == "B"){result_ball1_blue += 1;} | |
if (FirstBall == "B" && SecondBall == "R") {result_ball1blue_ball1red += 1;} | |
if (FirstBall == "B" && SecondBall == "B") {result_ball1and2_blue += 1;} | |
} | |
console.log("First Ball Red: " + result_ball1_red); | |
console.log("First and Second Ball both Red: " + result_ball1and2_red); | |
console.log("First Ball Red and Second Ball Blue: " + result_ball1red_ball2blue); | |
console.log("First Ball Blue: " + result_ball1_blue); | |
console.log("First Ball Blue and Second Ball Blue: " + result_ball1and2_blue); | |
console.log("First Ball Blue and Second Ball Red: " + result_ball1blue_ball1red); | |
//one pharse random -- 1/2 | |
var A = ["R","R"], B = ["R","B"]; | |
var count = 0, result_ball1_red = 0, result_ball1and2_red = 0, result_ball1red_ball2blue = 0, result_ball1_blue = 0, result_ball1and2_blue = 0, result_ball1blue_ball1red = 0; | |
var randomBoxNumber, randomBallNumber, FirstBall, SecondBall; | |
for (count = 1; count <= 100000; count++) | |
{ | |
//randomBoxNumber = Math.floor(Math.random() * 2 ) + 1; | |
FirstBall = "R"; | |
randomBallNumber = Math.floor(Math.random() * 2); | |
switch (randomBallNumber) | |
{ | |
case 0: | |
SecondBall = A[Math.abs(randomBallNumber)].toString(); | |
break; | |
case 1: | |
SecondBall = B[Math.abs(randomBallNumber)].toString(); | |
break; | |
} | |
//console.log(FirstBall +" "+ SecondBall); | |
if (FirstBall == "R") {result_ball1_red += 1;} | |
if (FirstBall == "R" && SecondBall == "R") {result_ball1and2_red += 1;} | |
if (FirstBall == "R" && SecondBall == "B") {result_ball1red_ball2blue += 1;} | |
if (FirstBall == "B"){result_ball1_blue += 1;} | |
if (FirstBall == "B" && SecondBall == "R") {result_ball1blue_ball1red += 1;} | |
} | |
console.log("First Ball Red: " + result_ball1_red); | |
console.log("First and Second Ball both Red: " + result_ball1and2_red); | |
console.log("First Ball Red and Second Ball Blue: " + result_ball1red_ball2blue); | |
console.log("First Ball Blue: " + result_ball1_blue); | |
console.log("First Ball Blue and Second Ball Blue: " + result_ball1and2_blue); | |
console.log("First Ball Blue and Second Ball Red: " + result_ball1blue_ball1red); |
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