1) In regression analysis, the model in the form y = 0 + 1x + is called the

a) regression model. b) correlation model.c) regression equation. d) estimated regression equation.

2)Regression analysis is a statistical procedure for developing a mathematical equation that describes how

a) one dependent and one or more independent variables are related.one dependent,

b) one independent, and several error variables are related.

c) one independent and one or more dependent variables are related.

d) several independent and several dependent variables are related.

3)In regression analysis, the variable that is being predicted is the

a) intercept variable. b) error variable.c) dependent variable. d) independent variable.

5. [12%] Give the time complexity for the following algorithm using two different approaches. You need to identify the basic operation first. F(int n) { If (n > 1) Return 2*F (n-1) ; Else Return 1; 1) [2%] What is the basic operation? 2) [2%]Set up the recurrence. Let T(n) be the # of basic operations. T(n) = 3) [4%] Use backward substitution to solve the recurrence and indicate the time complexity. 4) [4%] Write an iterative algorithm to solve the same problem.ALGORITHM S(n) //Input: A positive integer n //Output: The sum of the first n cubes if n = 1 return 1 else return S(n - 1) + n * n * n A. What does this algorithm compute? B. What is its basic operation? C. Does the number of times of the basic operation executed depend on the nature of the inputs of the same size? D. Set up a recurrence relation for the number of times the algorithm's basic operation is executed.An alternative method for implementing a set S is to imitate the bit string implementation of Delphi by using a boolean array S where S[ch] is true if the element ch is in S and is false otherwise. Using this implementation, write functions for the basic set operations of union, intersection, difference, membership, and equality. The rules for the program are: 1) Declare a boolean array type which will be mapped from 'A' to 'Z'. Note that the subscripts are characters so that we can actually test S[ch] directly M loop from 'A' to '2' directly in the for loop. 2) Create three arrays which will mimic sets: UNIVERSAL, VOWEL and MYNAME. Call a function INIT to initialize these arrays, with UNIVERSAL holding all of the letters, VOWEL contains the letters A, E, I, O and U. Initialize MYNAME to be an empty set, then read a data file which will contain the letters in your name. For ease of input, you can put one letter on each line. 3) Create a print function which will be sent one array. The print will be across a row with a space between elements, as in the following format: ABCDEFGHIJKLMNOPQRSTUWXYZ Call it three times to print the members of UNIVERSAL, VOWEL, and MYNAME, printing an appropriate message each time. 4) Write a function which will find the union of any two sets sent to it. Test the function by having it union VOWEL and MYNAME. Call the print function to print this set with an appropriate message