Question

3. Random IQ 20 points Intelligence quotient (IQ) tosts are designed such that the intelligence score ofǎ randomly selected person is a Gaussian random variable with mean 100 and standard deviation 15. If a genius is defined to be somcone with an IQ that is 140 or greater, what is the probability that a ndom person is a genius? You can use Matlab or tables Table 4.2. in the book. Note that Table 4.2. is in terms of thc so called Q-function which is 1 D(r), where Φ(z) is the cdf of standard Gaussian)

Answer 1

Selution /uo-100 乙> - I-O-9962-ニ10.003-8