A lot of 50 spacing washers contains 30 washers that are thicker than the target dimension. Washers are selected from the lot at random without replacement. (a) What is the minimum number of washers that need to be selected so that the probability that all the washers are thinner than the target is less than 0.10? Enter your answer in accordance to the item a) of the question statement (b) What is the minimum number of washers that need to be selected so that the probability that 1 or more washers are thicker than the target is at least 0.90?

The directions on a sewing pattern say to cut an extra 15% of fabric to account for error. chloe needs 0.75 yard of fabric to make a skirt, and she cuts 0.1125 yard. did chloe cut the correct amount of fabric? why or why not? a. chloe cut enough fabric because she cut the amount of fabric for the skirt. b. chloe cut enough fabric because she cut enough fabric for the skirt and the amount of extra fabric. c. chloe did not cut enough fabric because she only cut the amount of fabric for the skirt. d. chloe did not cut enough fabric because she only cut the amount of extra fabric.