A coin is tossed seven times. How many possible outcomes are there?
Determine the number of permutations of four letters of the word "Dinosaur"
If A and B are mutually exclusive events, and P(A) = 0.8, then P(B) must be
If A and B are complimentary events, and P(A) = 0.4, then P(B) is
How many different ways can a student answer five multiple-choice questions, each of which has four choices?
A certain car seats five people, two in front and three in back. In how many ways can family of five be seated in the car?
How many different three-digit numbers are possible if the first digit cannot be 0 and the second digit must be 0 or 1?
A spinner is divided into four equal sectors, each a different color. If the spinner is spun twice, how many different results can occur?
How many different ways can seven runners be assigned to seven lanes at the start of a race?
There are twelve students in a club. In how many different ways can a president, vice-president, treasurer, and secretary be elected from the club members?