Statista reported in 2014 that the mean number of Facebook friends for 18 to 24 year olds was 649. Assuming the distribution is normal with mean 649 friends and standard deviation 60 friends, what is the probability that a randomly selected 18 to 24 year old will have between 473 and 827 friends?

P(473 <X< 827) =

Enter your answer as a number accurate to 4 decimal places. *Note: all z-scores must be rounded to the nearest hundredth.

2.97 -2.93