Monique randomly surveyed 30 students from her class and found that 18 had a dog or a cat for a
pet. If there are 870 students in Monique's school,
predict the total number of students with a dog or a
cat.

The weight of a small starbucks coffee is a normally distributed random variable with a mean of 340 grams and a standard deviation of 11 grams. find the weight that corresponds to each event. (use excel or appendix c to calculate the z-value. round your final answers to 2 decimal places.)highest 30 percent middle 70 percent highest 90 percent lowest 20 percent