A normal distribution has a mean of =70 with =10. If one score is randomly selected from this distribution, what is the probability that the score will be greater than X = 82?

A normal distribution had a mean of =70 with =12. If one score is randomly selected from this distribution, what is the probability that the score will be less than X=58?

A normal distribution has a =100 with =20. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X=80 and X=100 ?

A normal distribution has a mean of =100 with =20. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X=100 and X=130 ?

A normal distribution has a mean of =80 with = 20. What score separates the highest 15% of the distribution from the rest of the scores?

A normal distribution has a mean of =24 with =3. What is the minimum score needed to be in the top 14% of the distribution?

John drives to work each morning and the trip takes an average of =38 minutes. The distribution of driving times is approximately normal with the standard deviation of =5 minutes. For a randomly selected morning, what is the probability that Johns drive to work will take less than 35 minutes?

IQ scores from a normal distribution with = 100 and the 15. Individuals with IQs above 140 are classified in the genius category. What proportion of the population consist of geniuses?