7.1: Temperature Drop Here are the recorded temperatures at three different times on a winter evening.
time: 4p. m. 6 p. m. 10 p. m.

temperature: 25°F 17°F 8° F

Tyler says the temperature dropped faster between 4 p. m. and 6 p. m.

Mai says the temperature dropped faster between 6 p. m. and 10 p. m.
Who do you agree with? Explain your reasoning.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms

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?