Acertain flight arrives on time 86 percent of the time. suppose 154 flights are randomly selected. use the normal approximation to the binomial to approximate the probability that (a) exactly 136 flights are on time. (b) at least 136 flights are on time. (c) fewer than 137 flights are on time. (d) between 137 and 146, inclusive are on time. (a) p(136)equals=nothing (round to four decimal places as needed.)

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.