document.write( "Question 1171071: The Web site for M&M™ candies claimed that 24% of plain M&M candies are blue, 20% are orange, 16% green, 14% yellow, and 13% each red and brown.\r
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document.write( "(a) Pick one M&M at random from a package.\r
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document.write( "1.Describe the sample space.\r
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document.write( "2.What is the probability that the one you pick is blue or red?\r
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document.write( "3.What is the probability that the one you pick is not green?\r
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document.write( "(b) You pick three M&M’s in a row randomly from three separate packages.\r
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document.write( "1.Describe the sample space for the outcomes of your three choices.\r
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document.write( "2.What is the probability that every M&M is blue?\r
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document.write( "3.What is the probability that the third M&M is red?4.What is the probability that at least one is blue? \n" );
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Algebra.Com's Answer #850992 by CPhill(1987) You can put this solution on YOUR website! Let's break down this M&M problem.\r \n" ); document.write( "\n" ); document.write( "**(a) Picking One M&M**\r \n" ); document.write( "\n" ); document.write( "1. **Describe the Sample Space:** \n" ); document.write( " * The sample space consists of all possible colors of an M&M. \n" ); document.write( " * Sample Space = {Blue, Orange, Green, Yellow, Red, Brown}\r \n" ); document.write( "\n" ); document.write( "2. **Probability of Blue or Red:** \n" ); document.write( " * P(Blue) = 24% = 0.24 \n" ); document.write( " * P(Red) = 13% = 0.13 \n" ); document.write( " * Since these are mutually exclusive events (an M&M can't be both blue and red), we add the probabilities: \n" ); document.write( " * P(Blue or Red) = P(Blue) + P(Red) = 0.24 + 0.13 = 0.37\r \n" ); document.write( "\n" ); document.write( "3. **Probability of Not Green:** \n" ); document.write( " * P(Green) = 16% = 0.16 \n" ); document.write( " * P(Not Green) = 1 - P(Green) = 1 - 0.16 = 0.84\r \n" ); document.write( "\n" ); document.write( "**(b) Picking Three M&M's**\r \n" ); document.write( "\n" ); document.write( "1. **Describe the Sample Space:** \n" ); document.write( " * Each M&M can be one of six colors. \n" ); document.write( " * The sample space consists of all possible combinations of three colors. \n" ); document.write( " * We can represent each outcome as a sequence of three colors (e.g., Blue, Orange, Red). \n" ); document.write( " * The sample space would be a list of all possible combinations of three colors, such as (Blue, Blue, Blue), (Blue, Blue, Orange), (Blue, Orange, Blue), etc. \n" ); document.write( " * The number of possible outcomes is 6 * 6 * 6 = 216.\r \n" ); document.write( "\n" ); document.write( "2. **Probability of Every M&M Being Blue:** \n" ); document.write( " * P(Blue) = 0.24 \n" ); document.write( " * Since the picks are independent, we multiply the probabilities: \n" ); document.write( " * P(Blue, Blue, Blue) = P(Blue) * P(Blue) * P(Blue) = (0.24)^3 = 0.013824\r \n" ); document.write( "\n" ); document.write( "3. **Probability of the Third M&M Being Red:** \n" ); document.write( " * The probability of the third M&M being red is independent of the first two picks. \n" ); document.write( " * P(Third M&M is Red) = P(Red) = 0.13\r \n" ); document.write( "\n" ); document.write( "4. **Probability of At Least One Blue:** \n" ); document.write( " * It's easier to find the probability of no blue M&M's and subtract it from 1. \n" ); document.write( " * P(Not Blue) = 1 - P(Blue) = 1 - 0.24 = 0.76 \n" ); document.write( " * P(No Blue in 3 picks) = (0.76)^3 = 0.438976 \n" ); document.write( " * P(At Least One Blue) = 1 - P(No Blue) = 1 - 0.438976 = 0.561024 \n" ); document.write( " \n" ); document.write( " |