Giả sử thị trường sản phẩm X có thể mô tả bằng phương trình dưới đây:
Cầu: P =140-2Q
Cung: P = Q+20
Trong đó P là giá cả tính bằng ngàn đồng/đơn vị, Q là số
lượng tính bằng ngàn đơn vị.
a. Xác định mức giá và sản lượng cân bằng?

Write and solve a real word problem that involves determining distance on a coordinate plane

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.