Question

A researcher is studying voice frequencies. He is working with a group of female non-native English speakers who are learning English. For this group of speakers, the distribution of fundamental frequencies while speaking English (the frequency of the natural speaking voice) has a mean of 214-Hz and a standard deviation of 18-Hz. The distribution of fundamental frequencies is nearly normally distributed. Find P58, which is the frequency separating the lowest 58% fundamental frequency from the highest 42%.

Enter your answer as a number accurate to 1 decimal place

Answer 1