A study included data on the colors for a sample of new cars sold in North America. They reported that 25% of the cars in the sample were white, 21% were black, 14% were gray, 11% were silver, 10% were red, and 19% were some other color. Suppose that these percentages were based on a random sample of 1,200 new cars sold in North America. Required:
a. Is there convincing evidence that the proportions of new cars sold are not the same for all six of the color categories?
b. Calculate the test statistic
c. What is the P-value for this test?

The graph shows the prices of different numbers of bushels of corn at a store in the current year. the table shows the prices of different numbers of bushels of corn at the same store in the previous year. previous year number of bushels price of corn (dollars) 2 10 4 20 6 30 8 40 part a: describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. part b: how many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? show your work.

Arandom number generator is used to model the patterns of animals in the wild this type of study is called

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.