Jada is using a computer’s random number generator to produce 6 random whole numbers between 1 and 100 so she can use a random sample. The computer produces the numbers 1, 2, 3, 4, 5, and 6. Should she use these numbers or have the computer generate a new set of random numbers? Explain your reasoning.

Data collected from a survey of American teenagers aged 13 to 17 is used to estimate that 29% of teens believe in ghosts. This estimate is based on data from 510 American teenagers. What is the population that people carrying out the survey were interested in?

Here is a dot plot that represents a data set. Explain why the mean of the data set is greater than its median.

In one study of wild bears, researchers measured the weights, in pounds, of 143 wild bears that ranged in age from newborn to 15 years old. The data were used to make this histogram.

1. What can you say about the heaviest bear in this group?
2. What is a typical weight for the bears in this group?
3. Do more than half of the bears in this group weigh less than 250 pounds?
4. If weight is related to age, with older bears tending to have greater body weights, would you say that there were more old bears or more young bears in the group? Explain your reasoning.