Indexing the web allows us to search the entire web in a much more efficient manner.  If our index only tracked which pages a word occurred in, we could answer the search query “computer science”.  

An engineer has collected processing times for a certain part as follows:  4 min, 3 min, 2 min, 4 min, 3 min, 14 min.  This question is part of a quiz or exam at Arizona State University.  No portion may not be posted to any website, photos and screenshots may not be taken, and no portion of it may be printed out. The table for a normal probability plot would be:   j xj (j-0.5)/n zj 1 A F K 2 B G L 3 C H M 4 D I N 5 E J O 6 P Q R To  3 decimal places, K = _____ Do any intermediate computations to 4 decimal places.

Graphics use the Cartesian coordinate system for drawing images.

What is intelligence?  Mark all (6) that best apply.

The weight of a part has the normal pdf with a mean equal to 4 g and a std dev equal to 1.1 g.  A sample of 15 of these parts is taken.  Determine the probability, to four decimal places, that the mean weight of this sample is less than 3.9 g. 

The following are reasons why the United States is highly polarized today (contributing factors). Select all that apply. 

Question 5 – Write a VBA macro in the box provided that prompts the user to “Enter an InvoiceNumber:”, then uses a loop to count how many times that InvoiceNumber appears in column M across rows 1 to 75. The macro should output the total count using a message box that displays: “The number of line items associated with this Invoice is: [count]”.   HINT: You will need to use InputBox for the user’s invoice number. In total, you should have 4 variables: one String, two Range, and one Long. If there are no occurrences, the message box should display 0. [20pts]

A psychology experiment asked 25 people to choose a number between 2 and 3 to two decimal places.  The experimenter believed that these numbers would be chosen according to a continuous uniform distribution. 4 people chose a number equal to 2.00 up to (equal to) 2.20 3 people chose a number larger than 2.20 up to (equal to) 2.40 10 people chose a number larger than 2.40 up to (equal to) 2.60 3 people chose a number larger than 2.60 up to (equal to) 2.80 5 people chose a number larger than 2.80 up to (equal to) 3.00   This question is part of a quiz or exam at Arizona State University.  No portion may not be posted to any website, photos and screenshots may not be taken, and no portion of it may be printed out. Perform a Chi-Square Goodness of Fit test on this data. Using P(Type I error) = 0.05, we  conclude that these data are not from a continuous uniform pdf.  

The time between arrivals of customers at an automatic teller machine is an exponential random variable with a mean of 10 minutes.  The ATM has just opened.  X is the time until the 5th customer arrives at the ATM.  Determine the probability that the 5th customer’s arrival is after the ATM has been open for 12 minutes.  Express your answer to four decimal places. 

Which of the following expressions shows the Lack of Memory Property of the geometric pmf? Enter your answer as the letter of your choice.    a. P(X < 2.0 | X < 3.20) = P(X > 1.20) b.  P(X > 5 | X > 2) = P(X < 3) c. P(X > 5 | X > 3) = P(X > 2)              d. P(X > 3.2 | X > 2.4) = P(X = 0.80) e. P(X > 2.0 | X = 3.20) = P(X > 1.20) f. P(X > 3 | X > 2) = P(X > 5)