For a particular dog breed the weight of adult girls is normally distributed with a mean of 24 pounds and a standard deviation of 2 pounds. Out of a population of 2,000 adult girl dogs, about how many would be expected to weigh more than 28 pounds?
Answer choices: 44 48 96 100

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.

How is this equation completed? i cannot find any examples in the book.