The neighborhood census shows that the 10 families in the neighborhood have 2, 4, 3, 2, 2, 1, 3, 4, 1, and 5 children.

What would happen to the mean number of children in a family if a family with 4 children were added to the census?

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

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.

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.