document.write( "Question 455297: During Spring break on the aleutian islands, the chance of snow on any given day is 45%
\n" ); document.write( "A) what is the probability that it will snow at most 2 out of 7 days - long spring break?
\n" ); document.write( "B) what is the probability that it will not snow at all during spring break?\r
\n" ); document.write( "\n" ); document.write( "I do not know the steps for trying to solve this problem. Please help
\n" ); document.write( "

Algebra.Com's Answer #312636 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
During Spring break on the aleutian islands, the chance of snow on any given day is 45%
\n" ); document.write( "---
\n" ); document.write( "Each day it either snows or it doesn't.
\n" ); document.write( "That is a binomial Problem.
\n" ); document.write( "---
\n" ); document.write( "A) what is the probability that it will snow at most 2 out of 7 days - long spring break?
\n" ); document.write( "---
\n" ); document.write( "n = 7 and p = 0.45
\n" ); document.write( "Using a TI-84 calculator I get:
\n" ); document.write( "P(0<= x <=2) = binomcdf(7,0.45,2) = 0.3164
\n" ); document.write( "---------------------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "B) what is the probability that it will not snow at all during spring break?
\n" ); document.write( "P(not snow) = 0.55
\n" ); document.write( "----
\n" ); document.write( "P(not snow for 7 days) = 0.55^7 = 0.01522
\n" ); document.write( "=================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "-----------
\n" ); document.write( "
\n" ); document.write( "
\n" );