In a sample of 56 eighth graders, 16 chose football as their favorite sport favorite sport. if there are 495 eight graders in the school, predict the number of student who prefer football

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

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

Why is x= 4 a solution to the proportion 14/x 56/1 6