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Exam 3: Making Decisions

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Question 1

True/False

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Most programming languages allow you to combine as many AND and OR operators in an expression as you need.

A) True
B) False

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Question 2

Multiple Choice

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Which of the following pseudocode selects all people over 21?

A) if age >= 20 then
B) if age > 20 then
C) if age Not < 21 then
D) if age > 21 then

E) B) and C)
F) B) and D)

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Question 3

Multiple Choice

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C#,C++,C,and Java use the symbol ____ to represent the logical OR.

In C++,Java,and C#,the ____ is the symbol used for the NOT operator.

A series of nested if statements is also called a ____ if statement.

When you use the OR operator,both of the listed conditions must be met for the resulting action to take place.

Case 1 The YumYum store sells ice cream. Single-scoops cost $2.00, double-scoops cost $2.80, and triple-scoops cost $3.50. -Double-scoop orders account for about 50 percent of the sales; single-scoop orders account for 30 percent and only 20 percent of sales are triple-scoops.When you write a program to determine sales based on scoop size,you can make the most efficient decision by asking first whether the scoop size is ____.

Case 1 The YumYum store sells ice cream. Single-scoops cost $2.00, double-scoops cost $2.80, and triple-scoops cost $3.50. -There is a $10 bonus for ice cream store workers that have more than $100 of sales on their shift and sell more than four triple-scoop servings.What pseudocode will select the workers that will earn a bonus?

Case 1 The YumYum store sells ice cream. Single-scoops cost $2.00, double-scoops cost $2.80, and triple-scoops cost $3.50. -There is a $10 bonus for ice cream store workers that have more than $100 of sales on their shift and sell more than four triple-scoop servings.During any one shift,there are many more workers selling more than four triple-scoop servings than workers having more than $100 in sales.When you write a program to determine bonuses,you can make the most efficient decision by first asking if workers had more than ____.

____ are diagrams used in mathematics and logic to help describe the truth of an entire expression based on the truth of its parts.

The conditional AND operator in Java,C++,and C# consists of ____.

A ____ is one that represents only one of two states,true or false.

A ____ is created when you need to ask multiple questions before an outcome is determined.

Write structured pseudocode to show the following: if the value in the studentGrade variable is greater than or equal to RANGE1 and less than RANGE2,move "OK" to outMessage. Significant declarations: string outMessage num studentGrade num RANGE1 = 0 num RANGE2 = 101

In an AND decision,it is more efficient to first ask the question that is less likely to be ____.

When you combine AND and OR operators,the AND operators take ____,meaning their Boolean values are evaluated first.

Case 1 The YumYum store sells ice cream. Single-scoops cost $2.00, double-scoops cost $2.80, and triple-scoops cost $3.50. -No matter how many scoops a customer chooses,when a customer also decides that they want the ice cream served in a cone,there is an additonal 50 cent charge.In order to correctly charge for the ice cream served in a cone,you would use a(n) ____.

When several decisions are based on the value of the same variable,many programming languages offer a shortcut called the ____ structure.

Sometimes you want to take action when one or the other of two conditions is true,this type of compound condition is called a(n) ____ decision.

Case 1 The YumYum store sells ice cream. Single-scoops cost $2.00, double-scoops cost $2.80, and triple-scoops cost $3.50. -To most efficiently keep track of the sales for each of the three serving sizes,you would use ____.