document.write( "Question 1210442: Data were collected from a survey given to graduating college seniors on the number of times they had changed majors. From that data, a probability distribution was constructed. Use the table below to answer the following questions, you may round your answers to three decimal places, if necessary.
\n" ); document.write( "x P(x)
\n" ); document.write( "0 0.234
\n" ); document.write( "1 0.263
\n" ); document.write( "2 0.219
\n" ); document.write( "3 0.165
\n" ); document.write( "4 0.067
\n" ); document.write( "5 0.038
\n" ); document.write( "6 0.011
\n" ); document.write( "7 0.002
\n" ); document.write( "8 0.001
\n" ); document.write( "a. What is the probability that a randomly selected student changed their major at least once?
\n" ); document.write( "b. What is the probability that a randomly selected student changed their major at most twice?
\n" ); document.write( "c. What is the probability that they changed majors more than three times?
\n" ); document.write( "

Algebra.Com's Answer #852598 by Edwin McCravy(20081)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "Data were collected from a survey given to graduating college seniors on the\r\n" );
document.write( "number of times they had changed majors. From that data, a probability\r\n" );
document.write( "distribution was constructed. Use the table below to answer the following\r\n" );
document.write( "questions, you may round your answers to three decimal places, if necessary.\r\n" );
document.write( "---------------------------------------------\r\n" );
document.write( "a. What is the probability that a randomly selected student changed their major\r\n" );
document.write( "   at least once?\r\n" );
document.write( "\r\n" );
document.write( "\"P%28%22%22%3E=1%29+=+1-P%280%29+=+1-0.234+=+0.766\"\r\n" );
document.write( "---------------------------------------------\r\n" );
document.write( "b. What is the probability that a randomly selected student changed their major\r\n" );
document.write( "   at most twice?\r\n" );
document.write( "\r\n" );
document.write( "P(0)+P(1)+P(2) =  YOU ADD THEM UP!\r\n" );
document.write( "----------------------------------------------\r\n" );
document.write( "c. What is the probability that they changed majors more than three times?\r\n" );
document.write( "\r\n" );
document.write( "P(4)+P(5)+P(6)+P(7)+P(8) = YOU ADD THEM UP!\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );