GCSE Secondary Maths Age 13-17 - Probability & Statistics: Probability - Explained

The video tutorial explains how to calculate the probability of drawing a blue bead from a jar containing three red beads and one blue bead. The probability is calculated as 1/4, and the video discusses how this can be represented as a fraction, decimal, or percentage. It emphasizes the importance of using the correct representation to receive full marks.

How many beads are there in total in the jar?

• 4

• 3

• 6

• 5

What is the probability of drawing a blue bead from the jar?

• 1/2

• 1/3

• 1/4

• 1/5

Which of the following is NOT an acceptable way to express the probability of drawing a blue bead?

• 1/4

• 0.25

• 25%

• One out of four

What is the decimal equivalent of the fraction 1/4?

• 0.4

• 0.3

• 0.25

• 0.2

What percentage represents the probability of drawing a blue bead?

• 20%

• 40%

• 25%

• 30%