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Finding the Mean

Finding the Mean. Ch. 3.1 A. Justin spent three days building birdhouses to sell. He built 5 houses the first day, 3 houses the second day, and 4 houses the third day. On the average, how many birdhouses did Justin build each day?. 1 st ADD 5 + 3 + 4 = 12 2 nd DIVIDE

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Finding the Mean

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  1. Finding the Mean Ch. 3.1 A

  2. Justin spent three days building birdhouses to sell. He built 5 houses the first day, 3 houses the second day, and 4 houses the third day. On the average, how many birdhouses did Justin build each day? 1st ADD 5 + 3 + 4 = 12 2nd DIVIDE 12 / 3 = 4 4

  3. It took four days to paint the new park statue. The painter used 2 gallons of paint the first day, 3 gallons the second day, 3 gallons the third day, and 4 gallons the fourth day. On average, how many gallons of paint did the painter use each day? 2 + 3 + 3 + 4 = 12 12 / 4 = 3

  4. Alexis studied for 30 minutes on Monday, 20 minutes on Tuesday, 45 minutes on Wednesday, and 15 minutes on Thursday. On average, how many minutes per day did she study? 30 + 20 + 45 + 15 = 110 Since the numbers are SO big…just do the MATH! 2 7 27 ½ minutes 4 √110 -8 3 0 -28 2

  5. Number of Toy Bears Collected Brian – 6 bears Kathy – 8 bears Lucita – 9 bears Terrell – 5 bears 6 + 8 + 9 + 5 = 28 7 28 / 4 =

  6. Ages of Dance Instructors Curtis – 23 Joy – 30 Ken – 26 Nida – 25 David – 21 125 23 + 30 + 26 + 25 + 21 = 25 125 / 5 =

  7. Heights of Water Falls 153 + 176 + 249 + 150 + 620 + 242 = Bridal Veil – 153 Horsetail – 176 Latourell – 249 Metlako – 150 Multnomah – 620 Wahkeena – 242 1,590 265 1590 / 6 =

  8. Amounts Earned from Gardening 23+ 26 + 25 + 24 + 23 + 24 + 6 + 24 + 23 = $23 $24 $26 $6 $25 $24 $24 $23 $23 198 22 198 / 9 =

  9. Number of Cans Collected 57+ 59 + 60 + 58 + 58 + 56 = 57 59 60 58 58 56 348 58 348 / 6 =

  10. Pg. 42 #1 28 8 + 6 + 7 + 7 = 87 76 7 28/ 4 =

  11. Pg. 42 #2 1500 850 588 338 1500 + 850 + 588 +338 = 3,276 819 3,278/ 4 =

  12. Pg. 42 #3 43 + 32 + 18 + 3 = 43 32 18 3 96 24 96/ 4 =

  13. Pg. 42 #4 29 25 23 17 16 29 + 25 + 23 + 17 + 16 = 110 22 110/ 5 =

  14. Pg. 42 #5 2522 2120 18 17 17 16 15 25 + 22 + 21 + 20 + 18 + 17 + 17 + 16 + 15 = 171 19 171/ 9=

  15. Pg. 42 #6 9992 9191 85 84 81 52 45 99 + 92 + 91 + 91 + 85 + 84 + 81 + 52 + 45= 720 80 720/ 9=

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