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The Laws of Probability As They Pertain To Genetics. P = F/T. The probability of any event is the quotient of the favorable outcomes divided by the total number of possible outcomes. P = 4 aces/52 cards =1/13.
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P = F/T The probability of any event is the quotient of the favorable outcomes divided by the total number of possible outcomes
P = 4 aces/52 cards =1/13 What is the probability of drawing an ace from a deck of regular playing cards with one blind draw?
What is the probability of throwing a seven (7) with one toss of a regular die?
Zero!It is certain not to happen because there is no 7 on the dieP = 0/6 = 0
What is the probability of a steel shot hitting the surface below it when it is released?
The probability of simultaneous events is the product of their individual probabilities.(AND)
Toss a pair of dice. What is the P of throwing a six on one while throwing a six on the other?
P = F/T X F/T The P of one 6 is 1/6 and the P of the other 6 is 1/6. The P of simultaneous events (occurring at the same time) is 1/6 X 1/6, or 1/36.
The probability of mutually exclusive events is the sum of their individual probabilities(OR)
Flip a penny. What is the P you will get a heads or a tails?
If you flip a heads, you can’t get a tails. If you flip a tails, that eliminates the possibility of a heads. You have mutually exclusive events. So…………
The probability of an event is not affected by previous outcomes
After these results, what is the P of flipping heads on the next toss??
P = F/T = ½Previous outcomes have no effect on the next toss!
¼ is the same as • 1:3 • 0.25 • 25% How?
¼ means the same as 1 favorable result to 3 unfavorable results…… 1:3
¼ means 0.25, which is read 25/100 which is 25%0.25 X 100% = 25%
With one draw from the deck what is the P of drawing: • A 5? • A heart? • A 5 or a 7? • An ace and a heart? • A face card?
Each of us puts our first name on a slip of paper and places it in a can. We draw one name. What is the P that it will be a girl’s name? What is the P that it will start with the letter R?
With one toss of a pair of dice, what is the P of getting: • Snake eyes? • A 7 or 11? • An unlucky 13?
Toss 4 dice. What is the P of getting a 1 on each of them (a total of 4)?