Sally rolls a fair dice and records the outcomes. She records numbers less than 4. She records odd numbers. Explain why these outcomes are NOT mutually exclusive.
1 and 3 are odd numbers and less than 4. These events can happen at the same time, so they are NOT mutually exclusive.
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15
What are common factors of 12 and 20? 1, 2, 3, 4, 5, 6, 10, 12, 20.
1, 2, 4
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15
A. Median = 4 B. Mean = 3.8
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20
Calculate 3/4 + 7/9. Give your answer as a mixed number.
27/36 + 28/36 = 55/36 = 1 19/36
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15
Calculate 89 : 5. Give your answer as a mixed number.
