The duration of human pregnancies is not fixed. it is known that it varies according to a distribution which is roughly normal, with a mean of 266 days, and a standard deviation of 16 days. (source: figures are from moore and mccabe, introduction to the practice of statistics). according to the empirical rule (sd rule), the shortest 2.5% of pregnancies last less than how many days?

Question 1(multiple choice worth 1 points)(07.06 mc)a group of students must collect at least $150 to organize a science fair. they have already collected $30. which graph best represents all remaining amounts of money, in dollars, that thestudents should still collect to organize the science fair? -210 -180 -150 - 120 -90-60 -300306090 120 150 180 210-210 -180 -150 - 120 -90 -60 -30 0 30 60 90 120 150 180 210-210 -180-150 - 120 -90-60-300 30 60 90 120 150 180 210-210 -180 -150 - 120.90 -60 -30 0 30 60 90 120 150 180 210

Pick the description of a geometric object that best matches the real world object box for a deck of card

What is the solution of log2  (3x  -  7)  =  3? 4 5