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Published byHugo Lawrence Modified over 8 years ago

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+ Review for Quarter 4 Test 2 LIII. Central Tendency LIV. Graphs

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+ Stem | Leaves 0 | 2 2 7 8 1 | 0 2 5 5 2 | 5 5 3 | 6 4 | 0 Find each. range: mean: median: mode: lower extreme: upper extreme: lower quartile: upper quartile: Answers: range: 38; median: 13.5; mode: 2, 15, 25; mean: 16.4; lower extreme: 2; upper extreme: 40 lower quartile: 7; upper quartile: 25

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+ Fill in the frequency and the cumulative frequency. New Book Club Members Members||||||||||||| || Frequency Cumulative Frequency Week12345 Answers: Frequency: 3, 5, 2, 6, 1 Cumulative Frequency: 3, 8, 10, 16, 17

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+ Answer the following questions based on the box-and-whisker plot. Answers:

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+ Tim wants to have an average of 85. His scores on 3 tests were: 81, 80, 85. What must his next test score be to meet his goal? Solve algebraically. Answer: 81 + 80 + 85 + x = 85 4 (4) 246 + x = 85 (4) 4 246 + x = 340 - 246 -246 x = 94

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