document.write( "Question 61258: Frequency Table showing distribution of Exam scores
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document.write( "Exam scores # of students
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document.write( "90 & over 5
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document.write( "80-89 12
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document.write( "70-79 40
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document.write( "60-69 18
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document.write( "50-59 13
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document.write( "40-49 6
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document.write( "30-39 6
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document.write( "What is the probability that a student picked at random will have a scor of at least 90? a score less than 90? a score of at least 60? and a score of more than 39 and less than 60? Tried several different equations with this and it just looked crazy;P(<90)= .12 is this correct? \n" );
document.write( "
Algebra.Com's Answer #42220 by funmath(2933)![]() ![]() ![]() You can put this solution on YOUR website! Frequency Table showing distribution of Exam scores \n" ); document.write( "Exam scores # of students \n" ); document.write( "90 & over 5 \n" ); document.write( "80-89 12 \n" ); document.write( "70-79 40 \n" ); document.write( "60-69 18 \n" ); document.write( "50-59 13 \n" ); document.write( "40-49 6 \n" ); document.write( "30-39 6 \n" ); document.write( "What is the probability that a student picked at random will have a score of at least 90? a score less than 90? a score of at least 60? and a score of more than 39 and less than 60? \n" ); document.write( "There are a total of 5+12+40+18+13+6+6=100 students \n" ); document.write( "P of at least 90 is 5/100=.05 \n" ); document.write( "P of less than 90 is (12+40+18+13+6+6)/100=.95 \n" ); document.write( "P of at least 60 is (5+12+40+18)/100=.75 \n" ); document.write( "P of more than 39 and less than 60 is (13+6+)/100=.19 \n" ); document.write( ": \n" ); document.write( "Happy Calculating!!! \n" ); document.write( " |