1a Probability And Simple Events Worksheet With Answers Page 5
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101A Probability and Simple Events
The probability of choosing a 3 or 13 is
, 0.1 or 10%.
P(multiple of 3)
Multiples of 3 that occur between 1 and 20 are 3, 6, 9, 12, 15, and 18.
The probability of choosing a multiple of 3 is
, 0.3 or 30%.
P(even number)
Even numbers that occur from 1 to 20 are 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20.
The probability of choosing an even number is
, 0.5, or 50%.
P(not 20)
The probability of not choosing 20 is
, 0.95, or 95%.
P(not a factor of 10)
Factors of 10 that occur from 1 to 20 are 1, 2, 5, and 10.
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