Suppose you have a sample {?1, ...,? }. if you were to use the population variance of this sample as an estimator for the true population variance, what would its bias be?

12x^2+10/2=6x^2+5 _ is the dividend _is the divisor and _is the quotient

Two numbers are in the ratio of 4:9. If the larger number is 35 more than the smaller number, then product of the number is?

Mitchell received a stipend at the beginning of the semester to buy textbooks. During the semester, he spent $439.34 on textbooks. He had $126.41 of the stipend left at the end of the semester. x - $439.34 = $126.41

maria bought seven boxes. a week later half of all her boxes were destroyed in fire. there are only 22 boxes left. with how many did she start with

For the two numbers listed, find two factors of the first number such that their product is the first number and their sum is the second number. - 9.-8

54.4% of tickets sold to a movie are sold with a popcorn coupon, and 45.6% are not. You want to calculate the probability of selling exactly 6 tickets with popcorn coupons out of 10 total tickets (or 6 successes in 10 trials).

Arron just paid $7.40 for a new pair of sunglasses. His father told him that prices were different 10 years ago. Then his grandfather told him that 20 years ago, prices were even better.

A dump truck is careying 4250 pounds of gravel. There are 2000 pounds in a ton. Express the weight of the gravel in tons only by using a mixed number. If necessary, simplify the fraction part of the mixed number.

A marketing research company desires to know the mean consumption of milk per week among males over age 25. They believe that the milk consumption has a mean of 2.5 liters, and want to construct a 85% confidence interval with a maximum error of 0.

Four friends go mout to dinner and decides to split the bill evenly. each friend orders a soda for 2.00, an entree for 12.99 and they all four share a dessert for 7.99 how much is the total bill