In a certain city 250 men in a sample of 1000 were found to be smokers. in anotherr city the numbar of smokers was 750 in a random sample of 2000. does this indicate the there is a greater proportion of smokers in the second city than in the first?

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?