Probability Part 1

List the sample space for the order in which 3 blocks A, B and C can be lined up.

• S = {A, B, C}

• S = {AB, AC, BC}

• S = {AB, BA, AC, CA, BC, CB}

• S = {ABC, ACB, BAC, BCA, CAB, CBA}

A marble is randomly selected from a box containing 5 green, 3 red and 7 blue marbles. Determine the probability the marble is red.

• $\frac{1}{3}$

• $\frac{1}{5}$

• $\frac{7}{15}$

• $\frac{4}{5}$

A marble is randomly selected from a box containing 5 green, 3 red and 7 blue marbles. Determine the probability the marble is green.

• $\frac{1}{3}$

• $\frac{1}{5}$

• $\frac{7}{15}$

• $\frac{4}{5}$

A marble is randomly selected from a box containing 5 green, 3 red and 7 blue marbles. Determine the probability the marble is blue.

• $\frac{1}{3}$

• $\frac{1}{5}$

• $\frac{7}{15}$

• $\frac{4}{5}$

A marble is randomly selected from a box containing 5 green, 3 red and 7 blue marbles. Determine the probability the marble is not red.

• $\frac{1}{3}$

• $\frac{1}{5}$

• $\frac{7}{15}$

• $\frac{4}{5}$

A marble is randomly selected from a box containing 5 green, 3 red and 7 blue marbles. Determine the probability the marble is neither green nor blue.

• $\frac{1}{3}$

• $\frac{1}{5}$

• $\frac{7}{15}$

• $\frac{4}{5}$

A marble is randomly selected from a box containing 5 green, 3 red and 7 blue marbles. Determine the probability the marble is green or red.

•  $\frac{7}{15}$ 

•  $\frac{8}{15}$ 

•  $\frac{10}{15}$ 

•  $\frac{12}{15}$ 

A carton of a dozen eggs contains eight brown eggs. The rest are white. Find the probability that an egg selected at random is white.

• 0

• $\frac{1}{3}$

• $\frac{2}{3}$

• 1

A dartboard has 36 selectors labelled 1 to 36. Determine the probability that a dart thrown at the center of the board will hit a sector labelled with a multiple of 4.

• $\frac{1}{36}$

• $\frac{4}{9}$

• $\frac{1}{9}$

• $\frac{1}{4}$

A dartboard has 36 selectors labelled 1 to 36. Determine the probability that a dart thrown at the center of the board will hit a sector labelled with a number between 6 and 9 inclusive.

• $\frac{1}{36}$

• $\frac{4}{9}$

• $\frac{1}{9}$

• $\frac{1}{4}$