Condom Failure Rate: According to the Department of Health and Human Services, the failure rate for male condoms is 18%. The accompanying table is based on the failure rate of 18%, where x represents the number of condoms that fail when six are tested. x P(x) 0 0.304 1 0.400 2 0.220 3 0.064 4 0.011 5 0.001 6 0+ Does the table describe a probability distribution? Why or Why not?       Assuming that the table does describe a probability distribution, find its mean?       Assuming that the table does describe a probability distribution, find its standard deviation?       If 6 condoms are tested and 5 of them fail, is 5 a significantly high number of failures? Why or Why not?       What does the symbol 0+ represent?

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.