Selecting Statistics

What is the mean of the data 159, 162, 165, 166, 167, 168, 169, 170, 185, 185

The range of the set 159, 162, 165, 166, 167, 168, 169, 170, 185, 185

The masses in grams of 15 similar packets of biscuits are given 199, 200, 200, 200, 200, 200, 200, 200, 200, 200, 200, 201, 202, 203, 203. What is the average mass of a packet of biscuit?

A pole vaulter recorded his heighest jump (in metres)in each of his last nine competitions. Which are 3.23, 4.24, 4.24,5.33, 5.34, 5.35, 5.36, 5.37, 5.38. How high can the pole vaulter can jump on average?

The times taken (in seconds) for ten runners to complete a 400m race are given 55, 58, 51, 82, 61, 63, 62, 59, 54, 60. What time best describes the average time of the ten athletes?

How was the lesson?