The following table lists the price and number of pages for each of 15 books that were reviewed in the February 1982 issue of the journal Technometrics. Also summary statistics, sample correlation and a scatterplot of the data are shown: Pages Price (in dollars) 302 30 425 24 526 35 532 42 145 25 556 27 426 64 359 59 465 55 246 25 143 15 557 29 372 30 320 25 178 26           Pearson correlation of Pages and Price (in dollars) = 0.401 Find the coefficient of determination ( as a decimal ) . Round to two decimal places  

The following set of data is randomly selected from a STA 2122 class of mine from spring 2010.The list includes clicker points earned in class (clickers allow students to answer questions in classand to have their answers scored) and their final averages.   Clicker points 32 11 34 41 16 Class Average 99 70 91 101 79  Find the correlation coefficient ( round to two decimal places)

The contingency table below shows the results of a random sample of 400 state representatives that was conducted to see whether their opinions on a bill are related to their party affiliations.  Approve Disapprove No Opinion  Republican  84 40 28 Democrat 100 48 36 Independent 20 32 12 Find the chi-square test statistic  used to test the claim of independence

A coffeehouse wishes to see if customers have any preference among 5 different brands of coffee. A sample of  customers provided the data below. What is the critical value for the rejection region  used to test the claim that the probabilities show no preference. ( Round to two decimal places). Use a 5 % level of significance  Brand 1 2 3 4 5 Costumers 20 25 20 30 30

Suppose there are two rectangular pools: one is 30 feet wide, 40 feet long, and 3 feet deep throughout, the other is 20 feet wide, 40 feet long, and 5 feet deep throughout. Compare the sizes of the pools in two meaningful ways. State whether your comparisons are related to a 1-dimensional, 2-dimensional, or 3-dimensional aspect of the pools.

Kira wants to learn more about the GCF and LCM of two counting numbers.   A. Using the numbers 8 and 30, describe to Kira what the least common multiple of two counting numbers is, and describe how to determine it.   B. Using the numbers 18 and 30, describe to Kira what the greatest common factor of two counting numbers is, and describe how to determine it.   Bonus: Find the GCF and LCM of

Use the Parallel Postulate to prove why the sum of the angles in a triangle is always 180⁰.                                   

Isabel is a baker and has made a total of 936 presentable cupcakes. She now needs to box them up. She can fit 8 cupcakes in each box. How many full boxes can Isabel fill, and how many cupcakes, if any, will be left over? Show and interpret the steps for 936÷8 using the scaffold method of division, and explain how to interpret the steps in the scaffold method in terms of the context of the word problem. You may use the scaffold method flexibly.

Show the parsing of the string  “abbc” using the following f grammar and parse table in a LR parser   0: S -> X1: X -> a X c2: X -> X X3: X -> b    

Which of the following is not true about lexical analyzer