Your are playing a baseball board game. You determine the results of an at-bat by drawing a card from a stack. The theoretical probability of drawing a “base hit” is 1/2 and there are 12 cards in the stack. How many of the cards represent base hits? Answer Quick please

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