document.write( "Question 1124627: Given that x is a normal variable with mean μ = 44 and standard deviation σ = 6.1, find the following probabilities. (Round your answers to four decimal places.)
\n" ); document.write( "(a) P(x ≤ 60)\r
\n" ); document.write( "\n" ); document.write( "(b) P(x ≥ 50)\r
\n" ); document.write( "\n" ); document.write( "(c) P(50 ≤ x ≤ 60)
\n" ); document.write( "

Algebra.Com's Answer #740994 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
z=(x-mean)/sd
\n" ); document.write( "z<(60-44)/6.1 or <2.62
\n" ); document.write( "a. probability z < 2.62 is 0.9956\r
\n" ); document.write( "\n" ); document.write( ">=50 is z>=(50-44)/6.1 or z>0.98
\n" ); document.write( "b. probability of this is 0.1635\r
\n" ); document.write( "\n" ); document.write( "c. Between the two is z between 0.98 and 2.62 or 0.1591
\n" ); document.write( "
\n" );