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Find the mean, median, mode and range for each set of numbers.a. The salamanders have a competition to see how far they can jump.The results are as follows:Shawn Cedric Joshua Noah Timothy Saka3.4m 4.6m 2.8m 4.4m 3.2m 2.8mMean:Median:Mode:Range:b. An ice cream van sells a range of different ice creams for 2 weeks.This is the numbers of ice cream he manages to sell.Week 1 : 87 75 95 102 109 61 85Week 2 : 77 103 102 80 81 63 70Mean:Median:Mode:Range: |
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Answer» Answer: Median = 3.3 Mode=2.8 b. Mean = 85 Median = 83 Mode = 102 Step-by-step explanation: a. Arranging in increasing ORDER, 2.8m, 2.8m, 3.2m, 3.4m, 4.4m, 4.6m Mean = =(2.8+2.8+3.2+3.4+4.4+4.6) ÷ 6 =21.2 ÷ 6 Mean =3.53 (approx) Median is the MIDDLE value, Median = =6.6 ÷ 2 Median = 3.3 Mode is the most frequently occurring Mode=2.8 b.Arranging in increasing order, 61,63,70,75,77,80,81,85,87,95,102,102,103,109 Using the above formulae, Mean = (61+63+70+75+77+80+81+85+87+95+102+102+103+109) ÷ 14 = 1190 ÷ 14 Mean = 85 Median = = 166 ÷ 2 Median = 83 Mode = 102 |
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