Question

Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects Probability 0.266 0.299 0.237 0.1440.036 4 0.018 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.) The standard deviation is (Round to one decimal place as needed.) (b) Interpret the results. The mean isso the average batch of 1000 machine parts has (Round to one decimal place as needed.) The standard deviation is so most of the batches of 1000 parts has ▼ The standard 1 or 2 defects no defects. at least 2 defects. The mean is so the average batch of 1000 machine parts has differ from the mean by no more than about 2 defects. differ from the mean by no more than about 1 defect. do not differ from the mean. differ from the mean by more than about 2 defects.

Answer 1

e. meami iz-D The Atran o the batel oDO machine pert hes 2