Drew dropped the thumbtack 100 times and found that it landed point up 38 times. What is the probability of the thumtack landing point up?
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Drew dropped the thumbtack 100 times and found that it landed point up 38 times. Drew concluded that the probability the thumbtack lands points up is about: The thumbtack landed point up 38 times out of 100. Therefore, the relative frequency of landing point up is 38/100 = 0.38 0.38 is nearest to 0.4, so this is the best estimate for the probability the thumbtack lands point up. 9. There are 10 counters in a bag: 3 are red, 2 are blue and 5 are green. The contents of the bag are shaken before Maxine randomly chooses one counter from the bag. What is the probability that she doesn't pick a red counter? There are 7 counters that are not red: 2 blue and 5 green The Number of ways it can happen = 7 The Total number of outcomes = 10 10. A special die is made in the shape of an icosahedron, and its faces are numbered with the numbers 1 to 20.
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probablity of thumtack landing point up is 38/100 which can be simplified to 19/50
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