The Syrian hamster has an average life span of two to three years. Although uncommon, these hamsters can sometimes live up to five years. A hamster's life span can be extended to a degree by providing it with a clean environment and fresh food daily. Continue Reading.
and substituting the estimate for gives. which is an unbiased estimator of the variance of the mean in terms of the observed sample variance and known quantities. Note that, if the autocorrelations are identically zero, this expression reduces to the well-known result for the variance of the mean for independent data.
The two events are independent. So, the probability is: P (A and B) = P (A) â¢ P (B) = 284â¢ 224= 316â 0.028. . . . . . . . . . The formula given above for the probability of two independent events can beextended to the probability of three or more independent events.age 1 of 2 12.5 Probability of Independent and Dependent Events 735 25. L AWN C ARE The owner of a one-man lawn mowing business owns threeold and unreliable riding mowers. As long as one of the three is working he canstay productive.