In 201420142014, the population of the United States was about 318{,}900{,}000318,900,000318, comma, 900, comma, 000 people.

Choose the best approximation of the United States population in 201420142014.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

What does the relationship between the mean and median reveal about the shape of the data