1) What is the mean height of these five plants: 40cm, 15cm, 35cm, 20cm, 30cm? a) 10cm b) 25cm c) 28cm d) 30cm 2) What is the range weight of five dogs that weigh: 14kg, 9kg, 30kg, 16kg, 8kg? a) 6kg b) 22kg c) 11kg d) 15.4kg 3) Six students try to complete a puzzle, the scores are below. What is the mean time taken to complete the puzzle? a) 10 b) 16.8 c) 8.4 d) 14 4) Here are the ages of some workers. What is the range of their ages? a) 39 b) 6 c) 34 d) 50 5) The time taken for four colleagues to complete a crossword are: 12 minutes, 600 seconds, half an hour, 25 minutes. What is the mean time it takes them? a) 77 minutes b) 4620 seconds c) 19 minutes and 15 seconds d) 19 minutes and 25 seconds 6) The time taken for four colleagues to complete a crossword are: 12 minutes, 600 seconds, half an hour, 25 minutes. What is the mean time it takes them? a) 13 minutes b) 20 minutes c) 19 minutes d) 780 seconds

Mean and Range Quiz

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