And Probability

At a community swimming pool there are 2 managers, 8 lifeguards, 3 concession stand clerks, and 2 maintenance people.  If a person is selected at random, find the probability that the person is either a lifeguard or a manager.

• 2/3

• 8/15

• 2/15

• not enough information

The cafeteria is serving three kinds of sandwiches:  tuna (T), chicken, (C), and peanut butter (P).  They are also serving a choice of two drinks:  milk (M) or water (W).  Which shows the CORRECT Sample Space List of possible combinations?

• TW, CW, PW

• TW, TM, TC, CW, PW

• TW, TM, CW, CM, PW, PM

• TCP, MW

P(not A) = 

• 6/8

• 3/4

• 2/8

• 1/4

What is sample space?

• a process with an uncertain result

• a possible result of an action

• a list of all possible outcomes of an event

• a single outcome or group of outcomes

How many outcomes when choosing a vowel (a, e, i, o, u) and then a number (2 or 6)?

• 7

• 5

• 10

• 12

What is the sample space of rolling a fair dice?

• 6

The result of a single observation of an experiment.

• Sample Space

• An outcome

• Equally Likely

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”?

• 2/7

• 5/49

• 5/7

• 10/49

An automobile dealer decides to select a month for its annual sale.  Find the probability that it will be September or October.

• 1/12

• 1/6

• 1/4

• 5/6

Determine the likelihood of the following event: 
Drawing a red card from a standard deck of cards

• 1/2

• 13/52

• 1/4

• 4/52