12 The times that a class of students spent talking or texting on their phones on a particular weekend is approximately normally distributed with
mean time 175 minutes and standard deviation 6 minutes.
Approximately what percentage of students used their phones for between 163 and 187 minutes on the weekend? Use the empirical rule to find your answer

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

The slope of the line whose equation is y - 3 = 0 is 0 3 no slope

A. 10.8 cm^2 b. 5.4 cm^2 c. 7.4 cm^2 d. 21.6 cm^2