Finding the Standard Deviation 8.23.2013 Finding the Standard Deviation

Do Now With your calculator, make a histogram of this data set. {4, 5, 6, 10, 10, 15, 15, 15, 16, 16, 16, 16, 16, 16, 17} Is is skewed left, skewed right, or normal?

Objective Calculate and use measures of center and spread (range, interquartile range, standard deviation) to interpret differences in data sets. Agenda Create data sets (10) class Standard Deviation Activity (30) groups Homework Help (10) individual Closure/Exit Ticket (10) class/individual

Class Problem A recent article says that teenagers send an average of 100 text messages per day. If I collected data from 6 teenagers, what could the possible data set look like to get this average?

Exit Ticket Will the following data have a large standard deviation or low standard deviation? Why? 3, 24, 39, 42, 45, 46, 67, 68, 79, 88