Probability - Single Event

Ben has two marbles of the same size in his pocket, a green one and a red one. He puts his hand into his pocket and, without looking, takes out a red marble.

• impossible

• unlikely

• even chance

• likely

• certain

Cindy has three marbles of the same size in her pocket, a green, a blue and a red marble. She puts her hand into her pocket and, without looking, takes out a red marble.

• impossible

• unlikely

• even chance

• likely

• certain

Leroy has six red marbles of the same size in his pocket. He puts his hand into his pocket and, without looking, takes out a blue marble.

• impossible

• unlikely

• even chance

• likely

• certain

Nosipho has ten marbles of the same size in her pocket, 6 white and 4 red marbles. She takes out a white marble when she puts her hand in her pocket without looking.

• impossible

• unlikely

• even chance

• likely

• certain

A slice of bread with butter and jam spread on one side is dropped on the floor. It lands with the jam side facing up.

• impossible

• unlikely

• even chance

• likely

• certain

A coin is tossed to decide who has the kick-off in a soccer match. Bafana wins the toss at the start of their next match.

• certain

• likely

• even chance

• unlikely

• impossible

Two percent of the valves in new soccer balls are defective. You buy a ball with a good valve.

• certain

• likely

• even chance

• unlikely

• impossible

A light bulb which is expected to last for 300 hours blows after 2 hours.

• certain

• likely

• even chance

• unlikely

• impossible

You will turn 2 years old on your next birthday.

• certain

• likely

• even chance

• unlikely

• impossible

What is the probability of flipping heads on a coin?

• impossible
• unlikely
• as likely as unlikely
• likely