El supermercat ALFA fa una oferta de 3 x 2 (emporta-te'n 3 i paga'n 2) en els paquets d'arròs i el supermercat BETA fa un descompte del 30 % per paquet d'arròs. Abans de les ofertes el paquet d'arròs costava 2 euros i se'n volen comprar 3 paquets

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.