- Question 4 In A Random Sample Of Utc Students 50 Indicated They Are Business Majors 40 Engineering Majors And 10 Ot 1 (32.67 KiB) Viewed 36 times
Question 4 In a random sample of UTC students 50% indicated they are business majors, 40% engineering majors, and 10% other majors. Of the business majors, 60% were females, whereas 30% of engineering majors were females. Finally, 80% of the other majors were male. Given that a person is male, what is the probability that he is an engineering major? (6 marks) Question 5 IQ's are designed to be N(100,225). To join Mensa un IQ of 138 is required. A psychologist claims that any child with an IQ of 150+ is "gifted". (a) What percentage of the population are eligible to join? (4 marks) (b) How many gifted children would you expect to find in a school of 1800 pupils? (6 marks)