Recent content by crystal1

6*6?

These are my choices.. 2,3,4,5,6,7,8,9 0,1 1,2,3,4,5,6,7,8,9 However, I am unsure if multiplying them all together like the last problem would work? Or if I multiply the number of choices like 8*2*9?

"For years, telephone area codes in the U.S. and Canada consisted of a sequence of three digits. The first digit was an integer between 2 and 9, the second digit was either 0 or 1, and the third digit was any integer from 1 to 9. (1) How many area codes were possible? (2) How many area codes...

All I have is 26*26=676 and 10*10*10*10*10=1,000,000 but my issue is the formality of presenting my work. I am not sure which probability formula I need to use when reading statistics questions.

I am unsure about which/what formulas to use for these word problems.. Here is one: How many different 7-place license plates are possible if the first 2 places are for letters 26 letters) and the other 5 places are for numbers (0-9, 10 numbers in total)? Any guidance/help would be greatly...