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CAN YOU WIN ?. USING FRACTIONS TO CALCULATE ODDS. A coin is tossed. What can happen ?. Heads. Tails. What is the chance you will get a head ?. Two coins are tossed ? How many possible results are there ?. What is the chance you’d get 2 heads ?. 2 heads. 1 head, 1 tail. 1 tail, 1 head.
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CAN YOU WIN ? USING FRACTIONS TO CALCULATE ODDS
A coin is tossed. What can happen ? Heads Tails What is the chance you will get a head? Two coins are tossed ? How many possible results are there ? What is the chance you’d get 2 heads ? 2 heads 1 head, 1 tail 1 tail, 1 head 2 tails
A die is tossed. There are 6 possible results. 1 2 3 4 5 6 What is the chance you’d roll a 6 ? Two dice are rolled. How many different results are there ? How many 7’s are there ? What are your chances of rolling a 7 ? or
A SIMPLE LOTTERY There are 20 numbers, from 1 to 20, each on a different ball. Two balls are to be selected at random. You can win a prize if you correctly guess which numbers will be drawn. What are the chances your first selection will be correct ? What are the chances your second selection will be correct ? (assuming your first choice was right) What are the chances both your selections will be correct ? = ( one chance in 190 )
Lotto 649 In Lotto 649 you can win the grand prize by correctly matching the 6 numbers selected random from the numbers from 1 to 49 . You have 6 chances out of 49 for your 1st number to match You have 5 chances out of 48 for your 2nd number to match You have 4 chances out of 47 for your 3rd number to match You have 3 chances out of 46 for your 4th number to match You have 2 chances out of 45 for your 5th number to match You have 1 chance out of 44 for your 6th number to match
Lotto 649 To find the chance you’ll match all 6 numbers, the fractions need to be multiplied together. To what simplified fraction does this reduce ? = You have about 1 chance in 14 million to win 1st prize !!! GOOD LUCK !
Super 7 Here you must match 7 numbers out of 47 (747) to win the first prize. What set of fractions must you multiply together to calculate the odds of winning the first prize ? This reduces to (one chance in about 63 million) However, on each ticket you get 3 sets of numbers, so your odds of winning the first prize are about 1 in 21 million.
Lottario In Lottario you must match 6 numbers out of 45. Each ticket gives you 2 sets of possible winning numbers. What are the chances you’ll win the first prize ? This reduces to So the odds that you could win first prize are about 1 in 4 million .
Lottery Worksheet Lotto 649 Super 7 Lottario