If you determine that the best-fit line through some sample data is y = 4.5 + 3.8 x then 4.5 and 3.8 are the _____ for this data.

A(n) ________ informs a user when entered data violates validation constraints

A) Input Message B) Error Message C) list validation D) cell validation

Here is a collection of while and do-while statements. Identify: i. those that are correct, and are likely to give the programmers intent; ii. those that are correct, but unlikely to give the programmer's intent, and iii. what compiler error will the rest generate?

``` a) cin >> n; while (-1 != n) { sum = 0; sum = sum + n; } b) cin >> value; while ( value != -1 ) sum = sum + value; cin >> value; c) cin >> n; int i = 1, >>Semicolon not comma while ( i < n ); sum = sum + i; i++; d) cin >> count >> limit; do count++ while ( count ??count > limit ); e) cin >> x; dox++; while( x > x ); ```