a day trader buys an option on a stock that will return $ profit if the stock goes up today and lose $ if it goes down. if the trader thinks there is a % chance that the stock will go up, find the standard deviation of the day trader's option value.

All of the following are examples of service-learning opportunities except: a. donating time to senior citizen war veterans and writing a report about the experience for your u.s. history class. b. getting a part-time job at a habitat restoration center. c. reading to second-grade students as part of your assigned reading time for your english class. d. planting trees in your community and then discussing global warming in your science class.

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

What are the two main ideas of this passage? museum experts feel that museums must change to attract visitors. museum experts care more about the number of visitors than about history. museums that display artworks and exhibits do not make families welcome. museums like colonial williamsburg make learning about the past fun. museums in the united states are different than in other countries.