In an intelligence test administered on 1,000 students, the average was 42 and stan- dard deviation 24. Find (i) the number of students exceeding a score 50, (ii) the number of students lying between...

Extracted text: In an intelligence test administered on 1,000 students, the average was 42 and stan- dard deviation 24. Find (i) the number of students exceeding a score 50, (ii) the number of students lying between 30 and 54, (iii) the value of score obtained by top 100 students.