Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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The intNums array is declared as follows: Dim intNums() As Integer = {10, 5,
7, 2}. Which of the following blocks of code correctly calculates the average value
stored in the array? The intTotal, intSub, and dblAvg variables contain the number 0
before the loop is processed.
a. Do While intSub < 4
intNums(intSub) = intTotal + intTotal
intSub += 1
Loop
dblAvg = intTotal / intSub
b. Do While intSub < 4
intTotal += intNums(intSub)
intSub = intSub + 1
Loop
dblAvg = intTotal / intSub
c. Do While intSub < 4
intTotal += intNums(intSub)
intSub += 1
Loop
dblAvg = intTotal / intSub – 1
d. Do While intSub < 4
intTotal = intTotal + intNums(intSub)
intSub = intSub + 1
Loop
dblAvg = intTotal / (intSub – 1)
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