What Will Be the Value of DblSum After the Button

question 30

Multiple Choice

What will be the value of dblSum after the button btnAdd is clicked, assuming that 25 is entered by the user into txtNum1, and 35 is entered into txtNum2?
Private Sub btnAdd_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnAdd.Click

Dim dblNum1, dblNum2, dblSum As Double
DblNum1 = CDbl(txtNum1.Text)
DblNum2 = CDbl(txtNum2.Text)
DblSum = Sum(dblNum1, dblNum2)
LblSum.Text = dblSum.ToString()

End Sub

Function Sum(ByVal dblNum1 As Double, ByVal dblNum2 As Double) as Double
Return dblNum1 + dblNum2
End Function

• A) 60
• B) 50
• C) 0
• D) 70

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Definitions:

Operating Characteristic

A function or curve that describes the discerning capacity of a statistical test, defining the probabilities of accepting a hypothesis over a range of values.

Sample Size

The number of individuals or observations used in a study, affecting its power and the precision of the results.

Type II Error

A statistical error that occurs when a false null hypothesis is not rejected, missing an actual effect or difference.

Sample Size

The number of observations or data points in a statistical sample.