Iq scores are normally distributed with a mean of 100 and a standard deviation of 15.
what percentage of people have an iq score between 79 and 125, to the nearest
tenth?

Somone me i want to know what 18 hours out of 24 hours in a fraction

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?