The GMAT scores from the sample of 50 applicants to MBA program point out that none of the applicants scored below 450. A frequency distribution was formed by selecting class intervals 450 t0 499, 500 t0 549 and so on with last class having an interval from 700 to 749. Two applicants scored the interval from 700 to 749. Two applicants scored in the interval of 450 to 499 and 16 applicants scored in an interval 500 to 549.
a. What is the percentage of applicants scored below zero?
b. What percentage of applicants scored between 500 and 549?
c. What percentage of applicants scored below 550?
d. What percentage of applicants scored below 750?