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3. The following table represents the number of minutes that 35 people had to wait in order to get Covid-19 vaccination in a clinic along

3. The following table represents the number of minutes that 35 people had to wait in order to get Covid-19 vaccination in a clinic along with the frequency in each class. Minutes waiting Number of people 0 - 5 6 - 11 12 - 17 18 - 23 24 - 29 30 - 25 a. Calculate the mean minutes that a passenger waits to get Covid-19 vaccination. (1 Mark) b. Calculate the standard deviation for the data. (3 Marks) [Total: 4 Marks]

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