This question is based on the following data set which represents the number of times that Christine's friends cycled to school: 9, 2, 4, 5, 6, 9, 10.Christine decided to include one more friend in her survey. If that friend hadn't cycled to school in the last month, how would that affect the latest month's value of the 'mean'?

Answer questions on: Range, the mean, the mode and the median. These numerical values will help you interpret data: especially when you have only numerical data.

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