Please show all work so I can study these problems.
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Multiplication Probability, basic counting problem. How many seven –digit telephone numbers are there if we cannot have a 1 or 0 in the first place, and no repeats in the last four digits?
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Simple Probability. The problem will be in the context of a probability experiment. (Size of sample space) n(s), and the size or number of the event space n (E). Then find probability of event E occurring.
Example: When drawing a card at random from a standard deck, what is the probability that you will get a red ace?
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Additional Rule of Probability. P (E1 or E2), where E1 and E2 are events in the same sample space which may or may not be mutually exclusive. Indicate what n(S) is.
Example: If you draw one card from a deck, what is the probability that you will draw a black ace or a club?
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Multiplication Rule of Probability. P (E1 or E2), where E1 and E2 form a sequence of events which may or may not be independent. Indicate n(S) is.
Example: Ina shipment of 25 scanners, 5 are defective. If two scanners are selected at random and tested, find the probability that both are defective (if the first one is not replaced after it has been tested.
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Simple Probability using a table. If you select a staff member at random, what is the probability of getting a male?
|
Staff |
Females |
Males |
|
Nurses |
17 |
11 |
|
Physicians |
8 |
12 |
E
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Additional Rule of Probability using a table (using table), If you select a staff member at random, what is the probability of getting a male or a physician?
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Multiplication Rule of Probability when you make multiple selections (using table), If you select two different staff members at random, what is the probability that they will both be males?
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Conditional Probability using a table (using table above), calculate with P (E2/E1).
Example: If you select a staff member at random, what is the probability of getting a nurse, given that the staff member is male?
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Using the Multiplication Rule with Complementary Probability, Independent Events. Complete “at least one” having a certain characteristic.
Example: If you flip a coin 5 times, what is the probability of getting at least one head?
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Using Multiplication Rule with Complementary Probability, Dependent Events.
Compute at least one certain characteristic, but the events will not be dependent.
Example: If you draw 5 different cards from a deck of cards, what is the probability of getting at least one red cars?
Deck 52 cards, 26 black and 26 red.


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