7. Fifteen Pigeons are released 16km from their loft and need to fly home. The vanishing directions of the pigeons are recorded in the table below5 . The direction of the pigeons" loft is 149 degrees from their release point. Do the pigeons, on average, fly directly to the loft?

2 ). How can we use e to identify departures from the model assumptions?

If such a couple has four children, we are interested in X = # children with the disease What is the sample space?

8. The fill volume of cans produced by a certain machine is normally distributed with mean 12 oz and standard deviation .03 oz. [4] a. What proportion of cans contain less than 12 oz? [4] b. The process by means of which the mean was set to 12 oz can actually be adjusted through calibration....

Find the z-score using a normal table. Use a table of normal probabilities to get a cumulative probability. Convert it to the probability of interest. Example: How Can We Compare Test Slide 25 Scores That Use Different Scales?

= 500 and standard deviation = 100. Your friend took the comparable ACT in 2001, scoring 30. That year, the ACT had = 21.0 and = 4.7. How can we tell who did better? What is the z-score for your SAT score of 650? For the SAT scores: What percentage of students scored higher than you? What...

59) gives the calories and sodium content for each of 17 brands of meat hot dogs. Make a scatterplot of sodium content y against calories x. Describe the main features of the relationship. What is the correlation between calories and sodium?

Sum of shaded area is equal to one. Smoothed histogram or density curve. How we view the "distribution" of a dataset can depend on how much data we have and how it is binned. Is the relationship linear or non-linear?

2 i, and (b) i=1 i = , then P as n N i=1 (Xi (3b) The number of students who enroll in a psychology course is a Poisson random variable with mean 100. The professor in charge of the course has decided that if the number enrolling is 120 or more he will teach the course in two separate sections,...

(a) Use this normal model to determine the probability that an American men in this age group will be shorter than 4"6" tall? (b) According to this normal model, what proportion of American men aged 20-29 are 6" or taller? (c) How tall must a man be to be among the...