Chapter 12 Sequences and Series - 12.2 Analyze Arithmetic Sequences and Series - 12.2 Exercises - Mixed Review - Page 809: 82

Mean $=6.666666....$, Mode =6 and Median $=6$

$ mean=\dfrac{5+6+6+6+8+9}{6}=6.666666....$ Mode =6 Now, in order to find the median, we will have to set up the given numbers as: $5+6+6+6+8+9$ Remove the first and last number. We are left with two numbers, $6,6$ Thus, Median $=6$ Hence, Mean $=6.666666....$, Mode =6 and Median $=6$