We say that a point estimator is unbiased if (choose one): its sampling distribution is centered exactly at the parameter it estimates. the standard deviation of its sampling distribution decreases as the sample size increases. its sampling distribution is normal. its value is always equal to the parameter it estimates. choices (a), (b), and (c) are all true.

We must first determine the shape of a rectangular prisms _ a0 to find area of the prism

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck