document.write( "Question 1176376: Based on past experience, 45% of all customers at Cooper’s Automotive Store pay for their purchases with a credit card. If a random sample of 260 customers is selected, what is the probability that:a)at least 100of the customers pay with a credit card.b)less than 125of the customers pay with a credit card.c)between 91and 112of the customers, inclusive, pay with a credit card \n" ); document.write( "
Algebra.Com's Answer #803148 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi\r\n" );
document.write( "Binomial Distribution:   p = .45  q = .55   n = 260\r\n" );
document.write( "Using Calculator(either TI or similarly inexpensive Casio fx-115 ES plus \r\n" );
document.write( "a) P( x ≥ 100)= 1 - P(x ≤ 99) = 1 -.0142 = .9858\r\n" );
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document.write( "b) P( x < 125) = P(x ≤ 124) = .8252\r\n" );
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document.write( "c) P( 91 < x < 112) = P(x ≤ 111) - P( x ≤ 91) = .2469 - .0007 = .2462\r\n" );
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document.write( "Important You feel comfortable using Your Calculator\r\n" );
document.write( "and know what one may use for in-class testing.\r\n" );
document.write( "Wish You the Best in your Studies.\r\n" );
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