Code 04 Random Numbers

Which block is used to generate random numbers in your programs?

• randomNumber()

• generateRandom()

• randomValue()

• numberRandom()

What does the command randomNumber(1, 6) do?

• Generates a random number between 1 and 6

• Generates a random number between 0 and 5

• Generates a random number between 1 and 5

• Generates a random number between 0 and 6

How can random numbers be used in drawing commands?

• As parameters to create random drawings

• Only to set the color of shapes

• Only to set the size of shapes

• Only to set the border of shapes

If you use randomNumber() multiple times in your program, what happens?

• It generates new random numbers every time

• It generates the same number every time

• It generates numbers in a fixed sequence

• It generates only one random number

Which of the following best describes the use of randomNumber() in the command ellipse(randomNumber(0,400), 200);?

• The x-coordinate of the ellipse is randomly chosen between 0 and 400

• The y-coordinate of the ellipse is randomly chosen between 0 and 400

• The size of the ellipse is randomly chosen between 0 and 400

• The color of the ellipse is randomly chosen between 0 and 400

Why might each run of the command ellipse(randomNumber(0,400), randomNumber(0,400)); produce different results?

• Because both coordinates are randomly generated each time

• Because the color changes each time

• Because the program uses a fixed sequence

• Because the ellipse size is fixed

What is the purpose of setting minimum and maximum values in randomNumber()?

• To control the range of possible random numbers generated

• To set the color of the random number

• To fix the output to a single value

• To repeat the same number every time

Suppose you want to simulate rolling a die in your program. Which randomNumber() command would you use?

• randomNumber(1, 6)

• randomNumber(0, 5)

• randomNumber(1, 5)

• randomNumber(0, 6)

How could you use random numbers to make a drawing program more interesting?

• By generating different positions or colors for shapes each time

• By always drawing shapes in the same place

• By using only fixed values for shapes

• By removing all randomness from the program

What does the diagram above demonstrate about using random numbers in drawing commands?

• Each run produces a different result due to randomness

• Each run produces the same result every time

• The dots are always in the center

• The color of the dots never changes