A large pile of coins consists of pennies, nickels, dimes, and quarters (at least 20 of each).

(a) How many different collections of 20 coins can be chosen?
(b) How many different collections of 20 coins chosen at random will contain at least 3 coins of each type?
(c) What is the probability that a collection of 20 coins chosen at random will contain at least 3 coins of each type?


Mathematics

You might also like to view...

A patient's order is 40 mg of codeine phosphate by subcutaneous injection. Available in stock is 50 mg in 1 mL of liquid for SC injection. How many milliliters will you administer?

A. 1 mL B. 0.8 mL C. 1.25 mL D. 1.2 mL

Mathematics

Find the function value, provided it exists.g(y) = ; find g(8)

A.
B. - 
C.
D. - 

Mathematics

Identify the independent and dependent variables.y = 3x2 + 6x - 2

A. independent: y, dependent: x B. independent: 3, 6, and -2, dependent: x and y C. independent: x, dependent: y D. independent: x and y, dependent: 3, 6, and -2

Mathematics

Estimate the quotient: ? ?

A. 60 B. 50 C. 40 D. 70

Mathematics