Year 7 Probability

Probability is:

• the list of all possible outcomes

• the chance or likelihood an event will happen/occur

• a diagram of all possible outcomes

• running an experiment multiple times

Sample space is:

• the list of all possible outcomes

• the chance or likelihood an event will happen/occur

• a diagram of all possible outcomes

• running an experiment multiple times

Probability can be written as ...

• a fraction

• a decimal

• a percentage

• all of the above

Probability can only be values between:

• 0 and 2

• 0 and 5

• 0 and 10

• 0 and 1

What is the sample space for rolling a six-sided die?

• 6

• {2, 4, 6}

• {1, 2, 3, 4, 5, 6}

• {1, 3, 5}

What is the sample space for selecting a letter from a list of vowels?

• 5

• 26

• {a, e, i, o, u}

• {a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z}

What is the sample space when selecting a letter at random from the word SPACE?

• 5

• {S, P, A, C, E}

• letters

What is the sample space for the spinner shown?

• {pink, green, blue, yellow, orange}

• 5

• {pink, green}

• {blue, orange}

When the spinner is spun, Pr(blue) =

• 5

When the spinner is spun, Pr(pink or green) =

• 5