Probability of seven cards
Not what you're looking for?
There are seven cards with digits 0, 1, 2, 3, 4, 5, and 6. A child takes four of the card and places them in some order. What is the probability that he obtains a four -digit number less than 3265?
Purchase this Solution
Solution Summary
Neat, step-by-step solutions determining the probability of seven cards are provided.
Solution Preview
(1) The number of ways in which 4 selections can be done out of 25 is C(25, 4) = 12650
Any one of the 4 selected submissions can be ranked as First. This can happen in 4 ways.
Any one of the remaining 3 submissions can be ranked as Second. This can happen in 3 ways.
Similarly the other two rankings can be given in 2 ways and 1 way respectively.
Therefore, by Fundamental Counting Principle, total number of ways of selecting 4 submissions and ranking them is
12650 * 4 * 3 * 2 * 1 = 303600.
(2) Total number of apples in the basket = 6 + 9 = 15
5 apples can be drawn out of ...
Purchase this Solution
Free BrainMass Quizzes
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.