Me babes if the probability of an event is 2/9, what is the probability of the complementary event? a) -7/9 b) 1/3 c) 2/9 d) 7/9 if the probability that you draw a red card out of a deck of cards is 1/2 , what is the probability that you do not draw a red card? a) 1/2 b) 1/4 c) 1/13 d) 1/52

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