Which of the following is considered a custom error message?
A) Caption text B) Default text C) Required text D) Validation text
D
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Which unary operator is used to access the contents of a memory cell through an indirect reference?
a. % b. # c. * d. & e. !
A dangling pointer is a pointer
A) to a block of memory that has been deleted. B) that has been declared, but has not yet been assigned a value. C) that has not been initialized. D) that has been assigned the value of null or null_ptr. E) None of the above
Display average employee salary by department, but do no include departments with average salary less than $75,000.
Write queries for the following. (Use tables created in Chapter 4 Lab Activity.)
When preparing a representative sample from a list of 200 customers who complained about errors in their statements, a _____ might select every tenth customer for review.
A. systematic sample B. stratified sample C. random sample D. comprehensive sample