Okay so this is a question on my stats homework and I can't figure it out.
"Until recently, with the advent of cellular phones,modems, and pagers, the area codes in the U.S. and Canada followed a certain system. The firrst number could not be 0 or 1, the second number could only be 0 or 1, and the third could not be 0. Under this system, how many area codes are possible?"
Please please walk me through how its worked out!!!
"Until recently, with the advent of cellular phones,modems, and pagers, the area codes in the U.S. and Canada followed a certain system. The firrst number could not be 0 or 1, the second number could only be 0 or 1, and the third could not be 0. Under this system, how many area codes are possible?"
Please please walk me through how its worked out!!!