For every 3 children that purchased a 2016 year book there were 5 that did not. if there are 872 students how many would be expected not to have purchased a yearbook?

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

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?