Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for metal sheets of a particular type, its mean value and standard deviation are 85 GPa and 2.3 GPa, respectively. Suppose the distribution is normal. (Round your answers to four decimal places.) (a) Calculate P(84 ≤ X ≤ 86) when n = 16. .9812 Incorrect: Your answer is incorrect. (b) How likely is it that the sample mean diameter exceeds 86 when n = 25

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Urgent? will give brainliest to the first correct answer what is the area of the figure?