Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
With the same parameters ( mu = 50 , sigma = 10 , n = 25 ), calculate P(\bar X < 47)
With the same parameters ( mu = 50 , sigma = 10 , n = 25 ), calculate P(\bar X < 47)
Natural Language
Math Input
Extended Keyboard