Moving to another question will save this response. Question 17 of 30 Question 17 4 points Based on historical records, the following probability distribution describes the number of sales of tractors sold by a salesperson in the local dealership on eathday Sales Probability 1 2 0.10 0.50 0.30 Let S denote the number of tractors sold by the salesperson. The salesperson earns $500 for each tractor sold. Therefore, the salesperson's total earnings are $500*5 Number of sales on any particular day is independent from the other days What is the standard deviation of the number of tractors sold by a salesperson on a single day? a03 60.49 O c 0.6 O012 Moving to another question will save this response. Question 17 of 30 de > ! E >