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TODAY IN ALGEBRA… Warm Up: Mean, Median, Mode, Range Learning Target: 13.7 You will make stem-and-leaf plots AT – Test corrections or missing assignments

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STEP 1: Create the STEM using the 10’s digit STEP 2: Write the LEAVES in increasing order using the 1’s digit STEP 3: Write a key Stem 0 1 2 3 4 Leaves 34 7788 24 4899 13 5 27 9 12

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STEP 1: Create the STEM using the 10’s digit STEP 2: Write the LEAVES in increasing order using the 1’s digit STEP 3: Write a key Stem 0 1 2 3 4 5 Leaves 89 8 44 5 22 8 01 79 89 1 2 7 26

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STEP 1: Create the STEM using the first 3 digits. STEP 2: Write the LEAVES in increasing order using the 1’s digit STEP 3: Write a key Stem 178 179 180 181 Leaves 77 0 3 26 7 7 88 8 88 8 88 9 126

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13.6 MEAN, MEDIAN, MODE CHECKPOINT: Complete problems Pg.883: 3-7

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13.7 STEM-AND-LEAF PLOTS CHECKPOINT: Complete problems Pg.883: 3-6 Stem 1 2 3 4 5 Leaves 7 0 01 3 2 5 58 04 89 Stem 0 1 2 3 Leaves 1 0 2 47 25 6 67 889 3 3.4.

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13.7: STEM-AND-LEAF PLOTS CHECKPOINT: Complete problems Pg.883: 3-6 Stem 10 11 12 13 14 15 16 17 18 Leaves 5 1 3 2 6 9 14 Stem 1.0 1.1 1.2 1.3 1.4 Leaves 1 2 1 99 5 5 5.6. 9 7 2 3 9 5

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STEP 1: Create the STEM using the 10’s digit STEP 2: Write the LEAVES in increasing order using the 1’s digit on BOTH sides. STEP 3: Write a key 123123 Women 66 88 56 0 Men 43117

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13.7 STEM-AND-LEAF PLOTS The great thing about back-to-back stem-and-leaf plots: We can easily compare data! EXAMPLE: The ages of 2004 Olympic gymnastics teams. Make a back-to-back stem-and-leaf plot of the data. What can you generalize about the ages of the men and women in the 2004 Olympic gymnastics teams? Men were generally older than the women. 123123 Women 66 88 56 0 Men 43117

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13.7 STEM-AND-LEAF PLOTS EXAMPLE: The ages of 2004 Olympic gymnastics teams. Make a back-to-back stem-and-leaf plot of the data. 1. What is the mean, median, mode and range for the men’s ages? 123123 Women 66 88 56 0 Men 43117

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13.7 STEM-AND-LEAF PLOTS EXAMPLE: The ages of 2004 Olympic gymnastics teams. Make a back-to-back stem-and-leaf plot of the data. 1. What is the mean, median, mode and range for the women’s ages? 123123 Women 66 88 56 0 Men 43117

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13.7 STEM-AND-LEAF PLOTS PRACTICE: Find the mean, median, mode and range of Set A and Set B. SET A:

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13.7 STEM-AND-LEAF PLOTS PRACTICE: Find the mean, median, mode and range of Set A and Set B. SET B:

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13.7 STEM-AND-LEAF PLOTS CHECKPOINT: Complete problems Pg.884: 17, 20, 21

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13.7 STEM-AND-LEAF PLOTS CHECKPOINT: Complete problems Pg.884: 17, 20, 21

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