On Monday the average temperature is 15°C in Prague. The weather forecast shows a drop in temperature by 2°C by the next day.

By the end of the week the temperature is expected to drop even further by 4°C.

What is the temperature, in °C , in Prague at the end of the week?

2.5 milligrams is equivalent to how many grams

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

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?