Math.random CSA quiz

What type of value does Math.random() return?

• Int

• int

• Double

• double

What is the specific range of Math.random()

• (0,1)

• [0,1)

• (0,10)

• [0,1]

What is the range of (int) (Math.random() * 6) + 5

• 10

• 6

• 11

• 5

What is the minimum of (int) (Math.random () * 20) + 1

• 0

• 20

• 1.0

• 1

What is the formula for range?

• max + min + 1

• min - max + 1

• max - min + 1

• max - min - 1

Calculate the range with these vales:

max = 50

min = 27

• 23

• 23.0

• 24

• 25

Sally is playing a game with her friend. They are both rolling dice to see who can win the $1 dollar prize. The winner of the game is determined by the 1st player rolling a dice and then the other player wins if they roll any number that is greater than the number the first player rolled. If Sally rolls a 2, which of the following random numbers include ALL the possible values that her friend must roll to win?

• (int) (Math.random() * 4) + 3

• (int) (Math.random() * 3) + 3

• (int) (Math.random() * 6)

• (int) (Math.random() * 6) + 1

What is the maximum value this can yield?

Math.random() * 2

• 2

• 2.0

• 1.9

• none

Which value can be yielded from (int) Math.random()?

• 1.0

• 1

• 0

• 1.00

What type of value does Math.random() return?

• char

• int

• String

• double