nvm.i got it
:D
An appliance store sells washing machines and dryers among other things. The average sale on washers and dryers is $530 with a standard deviation of $100. Suppose that sales figures on washers and dryers are normally distributed. If a sale is randomly selected, the probability that it is between $400 and $575 is:
.4599
.5768
.0401
.2296
is it 0.5768
1 answer
1 answer