Question

An exam is standardized to a normal model, with a mean of 110 and a standard deviation of 18. Based on the normal model N(110,118) describing exam scores, what percent of people's exam scores would you expect to be...

1.) over 97
2.)under 98
3.) between 119 and 131

Answer 1

3.) between 119 and 141 because of u add the total and divide u will get in between those numbers