document.write( "Question 1130287: The probability that a student has a Visa card (event V) is .68. The probability that a student has a MasterCard (event M) is .21. The probability that a student has both cards is .03.
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\n" ); document.write( "(a) Find the probability that a student has either a Visa card or a MasterCard. (Round your answer to 2 decimal places.)
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\n" ); document.write( "(b) In this problem, are V and M independent?
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\n" ); document.write( " Yes
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Algebra.Com's Answer #746972 by ikleyn(52797) $\"\"$ $\"About$

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document.write( "(a)  According to the general formula of the Probability theory,\r\n" );
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document.write( "         P(V U M) = P(V) + P(M) - P(V & M) = 0.68 + 0.21 - 0.03 = 0.86.     ANSWER\r\n" );
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document.write( "(b)  According to the general definition of the Probability theory, the events  V  and  M  are independent IF AND ONLY IF  \r\n" );
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document.write( "        P(V & M) = P(V) * P(M).\r\n" );
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document.write( "     In our case IT IS NOT SO ==============>  therefore, the events  V  and  M  are NOT INDEPENDENT.\r\n" );
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