Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: DOGS Use the frequency distribution to construct a probability distribution. The number of dogs per household in a small town. DOGS [0] [1] [2] [3] [4] [5] HOUSEHOLDS 1409 443 176 60 22 14 * [x] [P open parentheses x close parentheses] 0 _____ 1 _____ 2 _____ 3 _____ 4 _____ 5 _____ * Find the probability of randomly selecting a household that has fewer than two dogs. [P open parentheses x less than 2 close parentheses space equals] _____ * Find the probability of randomly selecting a household that has at least one dog. [P open parentheses x greater or equal than 1 close parentheses space equals] _____ * Find the probability of randomly selecting a household that has between one and three dogs, inclusive. [P open parentheses 1 less or equal than x less or equal than 3 close parentheses space equals] _____ * Find the mean to 3 significant digits. [mu equals] _____ * Find the variance to 3 significant digits. [sigma squared equals] _____ * Find the standard deviation to 3 significant digits. [sigma equals] _____
Right answer summary: part 1: 0.663; part 2: 0.209; part 3: 0.0829; part 4: 0.0282; part 5: 0.0104; part 6: 0.00659; part 7: 0.872; part 8: 0.337; part 9: 0.32; part 10: 0.533; part 11: 0.84; part 12: 0.917
Question state: todo