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1.Suppose the relationship between income and the years an employee has been with an employer is y = 99.464569 +3.713375*x + 0.010438*x^2, where y is income (measured in thousands of dollars), x is years, and x^2 is years squared. For someone with 12 years of employment, what is the slope? (Record your answer to the nearest third decimal place.)

2. Which of these is a clear example of stratified sampling? Pulling over 3 busses at random during the day on a popular bus route and asking the passengers onboard to complete a questionnaire Going to 12 randomly selected grocery stores and testing all employees within the store for covid Sampling 10 students from each of 30 undergraduate courses to assess their experiences with online learning Moving around a shopping mall and interviewing 35 passing people who agree to complete a survey Asking a random sample of 45 professors with tenure at a university their opinions on the importance of diversity.

3.An individual has $25,000 invested in a stock with a beta of 0.4 and another $80,000 invested in a stock with a beta of 2.2. If these are the only two investments in her portfolio, what is her portfolio's beta? Round your answer to two decimal places.

4.finance: Define the five basic principles finance and justify
your analysis by illustrating examples: Choose one or more events described by media (CNN
Business, Financial Times, Dow Jones financial news etc.) about companies and financial
market. Analyse that event (s) applying the five basis principles of finance. Note: Each principle
is to be illustrated by at least one event. The events should be in 2020.

5. Assuming you are the Forex dealer and the following rates per $ (US Dollar) is quoted against SF. (Swiss Franc) Day Quote 1.6982/98 26.12.2019 27.12.2019 1.5990/7060 28.12.2019 1.7027/42 i. On which day is it cheaper to buy US $ with respect to SF? ii. How many US $ do you need to buy 1000 SF on Day 1? iii. Find out forex-spread on 27th December? iv. If you want to exchange $ 2500 for SF 4256.75 on which day it is cheapest?