The lengths of songs on the radio are normally distributed with a mean length of 210 seconds. If 38.2% of all songs have lengths between 194 and 226 seconds, then the standard deviation of this distribution is:A) 16 seconds B) 8 seconds C) 32 seconds D) 64 seconds I’m suppose to construct a bell diagram for this question but don’t know how to without the standard deviation..... thx
Accepted Solution
A:
Given that the lengths of songs on the radio are normally distributed with a mean length of 210 seconds, then the probability that a randomly selected song will have length between 194 and 226 seconds is given by: