tỉ lệ sản phẩm tốt theo quy định của một máy là 0.85. sau 1 thời gian hoạt động, nghi ngờ máy hoạt động không bình thường, người ta kiểm tra 100 sản phẩm thì có 77 sản phẩm tốt, với mức ý nghĩa 1%, hãy tính giá trị kiểm định và cho nhận xét về nghi ngờ trên

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).

Find the distance between (7,-6) and (-3,-9)

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