Astore is having a sale. each customer recieves either a 15% discounton purchaaes under $100 or 20% discount on purchases of $100 or more. kelly is purchasing some clothes for $96.60 befire the discount. she decides to buy the fewest packs of gum that will increase her purchase to over $100. the price of each gum pack is $0.79. after the discount, how much less will kelly pay by purchasing the clothes and the g instead of purchasing only the clothes? (assume there is no sales tax to consider.)

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?