L1 Maths: Probability

A biased coin has a probability of landing on heads of 0.55. What is the probability of Tails?

Mathematical Equivalence

ON

A spinner can land on Red, Blue or Yellow.

The probabilities of Red and Blue are:

Red 0.25

Blue 0.4

What is the probability of Yellow?

Mathematical Equivalence

ON

A spinner can land on Red, Blue or Yellow.

The probabilities of Red and Blue are:

Red 0.45

Blue 0.35

What is the probability of Yellow?

Mathematical Equivalence

ON

A spinner can land on Red, Blue or Yellow.

The probabilities of Red and Blue are:

Red 0.45

Blue 0.35

Yellow 0.2

What is the probability of landing on either Blue or Yellow?

Mathematical Equivalence

ON

A spinner can land on Red, Blue or Yellow.

The probabilities of each are:

Red 0.45

Blue 0.35

Yellow 0.2

I spin the spinner 50 times. How many times is the spinner expected to land on Yellow?

Mathematical Equivalence

ON

A spinner can land on Red, Blue, Green or Yellow.

The probabilities of Red, Blue and Green are:

Red 0.45

Blue 0.3

Green 0.1

I spin the spinner 60 times. How many times is the spinner expected to land on Yellow?

Mathematical Equivalence

ON

A spinner can land on Red, Blue or Yellow.

The probabilities of each colour is equal.

I spin the spinner 270 times. How many times is the spinner expected to land on Yellow?

Mathematical Equivalence

ON

A spinner can land on Red, Blue or Yellow.

The probabilities of each are:

Red 0.45

Blue 0.35

Yellow 0.2

I spin the spinner 200 times. How many times is the spinner expected to land on either Red or Blue?

Mathematical Equivalence

ON

A bag contains 100 beads which are Black, White, Red or Green.

The probability of pulling out a Green bead is 0.12.

How many Green beads are in the bag?

Mathematical Equivalence

ON

A bag contains 100 beads which are Black, White, Red or Green.

The probability of pulling out a Green bead is 0.12. For a Black bead it is 0.4, and for a White bead it is 0.3.

How many Red beads are in the bag?

Mathematical Equivalence

ON