Halla las razones trigonométricas del ángulo de 75°, sabiendo que las razones de 15° son: sen 15° = 0,259 cos 15° = 0,966 tg 15° = 0,268

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.