A jar contains 50 balls numbered 1 to 50. a. How many different sets of 5 balls can be randomly taken from the jar?

The answer is

b. How many different sets of 5 balls containing the ball numbered 42 can be taken from
the jar?

The answer is

Give your probabilities in simplified fraction form. Hint: look at the factorial forms of
part a and part b.

c. What is the probability that a 5–ball set will contain the ball numbered 42?

The answer is

d. What is the probability that a 5–ball set will not contain the ball numbered 42?

The answer is

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation: