1) The scatter plot shows the amount of rainfall received each year from 2000 - 2008 in Tennessee. Draw the line of best fit for the scatter plot.
2) A scatter plot showing the cost of refrigerators based on their capacity is shown below. The scatter plot has a line of best fit drawn. Predict how much a refrigerator with a capacity of 8 cubic feet would cost. Cost is money, so make sure you use the correct units.
3a) Make a scatter plot for the data presented in the table
3b) Draw the line of best fit on your scatter plot above.

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?