What is the probability that two phones of each type are among the first six serviced?

Which of the following can be used to explain a statement in a geometric proof?

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi