Allie, Barry, and Cassie—the three children in the Smith family—have dishwashing responsibilities. Every day, their mother randomly chooses a child to wash dishes after dinner. Develop a model that their mother could be use to choose which child will wash dishes after dinner. You may want to consider spinners, number cubes, or coins.

Explain why your model can be used to predict which child will wash dishes after dinner.

What is the missing constant term in the perfect square that starts with x^2 -20x

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.