Self-Assessment Activity 2 1. Find the range, the standard deviation, and the variance for the given samples. Round non- integer results to the nearest tenth. a. 1,2, 5, 7, 8, 19, 22 b. 3,4,7,11,12,12,15,16 c. 2.1, 3.0, 1.9, 1.5, 4.8 d. 5.2, 11.7, 19.1, 3.7, 8.2, 16.3 2. A mountain climber plans to buy some rope to use as a lifeline. Which of the following would be the better choice? Explain why you think your choice is the better choice. Rope A: Mean breaking strength: 500 lb; standard deviation of 100 lb Rope B: Mean breaking strength: 500 lb: standard deviation of 10 lb 3. Evaluate the accuracy of the following statement: When the mean of a data set is large, the standard deviation will be large. Explain