A graduate student researcher designs a study that will investigate the effects of a new curriculum on student achievement in high school
mathematics. She creates a final exam with 20 questions. She compares two
samples, each containing 10 randomly selected students. One sample
consists of Algebra I students. The other sample consists of Algebra II
students. Select all weaknesses in the design,

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left

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?