The shocks arrive on average once a day. About half of the shocks cause no damage, one out of ten damages component 1 alone, about one out of five damages component 2 alone, and the rest damage both components. Compute the probability that the system survives for at least 4 weeks if both components are working initially

Which term best describes the association between variables a and b

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). −5x3 + 11x2 − 2 5x3 − 11x2 + 2 x3 + 2x2 + x3 x3 − 2x2 − x3