Exemple Number 20

Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 0 2 3 4 5 Probability 0.665 0.214 0.080 0.020 0.014 0.007 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. 1 =(Round to one decimal place as needed.) Find the variance of the probability distribution. 02 = (Round to one decimal place as needed.) Find the standard deviation of the probability distribution. = (Round to one decimal place as needed.) (b) Interpret the results in the context of the real-life situation. O A. A household on average has 0.5 dog with a standard deviation of 15 dogs. O B. A household on average has 0.5 dog with a standard deviation of 0.9 dog O C. A household on average has 0.9 dog with a standard deviation of 0.5 dog. D A hnicahold on avarane has n & don with a standard daviation of n 9 don