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Grade 7 Mid Unit Quiz • 1. c Solution: 7+9+11+13= 40 40/4=10 • 2. d Solution: 7+ 14+ 14+ 19+ 21 Mode= 14 • 3. c Solution: 39- 16 = 23 Range= 23 • 4. a Solution: 3+ 5+ 5+ 11+ 15+ 20+ 52+ 58+ 59 (Median= 15) QUESTION 5 • Put numbers in order from least to greatest: 0, 0, 0, 2, 3, 4, 5, 6, 7, 8 • (most common number) Mode: 0 • (largest minus smallest number) Range: 8 – 0= 8 • (Middle number of set) Median: 3+4= 7 7/2= 3.5 • (Add the numbers and then divide that by how many numbers are in the set) Mean: 0+ 0+ 0+ 2+ 3+ 4+ 5+ 6+ 7+ 8= 35 35/10= 3.5 QUESTION 6 • ( -10) + (+7)= -3 QUESTION 7 • ( -3) - (-5) • add the opposite • (-3) + (+5)= QUESTION 8 • There are 5 numbers in the set so draw five blanks: • The median is 8 so it goes in the middle • The mode is 7 so place two sevens at the front • The median is 9 so the sum of the digits is 9 x 5 = 45 7+7+8= 22 and 45 – 22= 23 so the last 2 digits must add to 23 (ex: 10 and 13) • Our set could be: