Tom's commuting time from his residence in Carmel to the IUPUI campus has a normal distribution. The standard deviation of the commuting time is 8 minutes. The fraction of commutes that last less than 40 minutes is 0.30 (30%). What is the mean commuting time? What is the probability that the commuting time would exceed 60 minutes? Below what commuting time 10% of commutes take place? 90% commuting times fall between _______ and _______ minutes.
Tom's commuting time from his residence in Carmel to the IUPUI campus has a
The fraction of commutes that last less than 40 minutes is 0.30 (30%). What is the mean commuting time?
What is the
Below what commuting time 10% of commutes take place?
90% commuting times fall between _______ and _______ minutes.
The question is about normal distribution
Given :
Std. deviation of the commute time ( ) = 8 minutes
To find :
1 ) Mean commute time if fraction of commutes that last less than 40 min. is 0.30
2 ) prob. that the commuting time would exceed 60 min.
3 ) Below what commuting time 10% of commutes take place
4 ) 90% commuting times fall between _______ and _______ minutes.
Step by step
Solved in 2 steps with 5 images
