Introducing 

Prezi AI.

Your new presentation assistant.

Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.

Loading…
Transcript

How confident do you feel with this topic?

Write Red, Amber or Green in your books.

Work through exercise 26F

Confident....

Example...

LO:

Developing students will be able to add probabilities for mutually exclusive events

Secure students will be able to work out the probability that something will not happened given that you know the probability that it will happen

Tom spins a coin 50 times.

He gets 21 tails.

Write down the estimated and theoretical probability of getting a tail.

21

=

50

no. successful trials

Estimated probability =

total no. trials

Pin Experiment

Relative Probability

Go back to your pin experiment.

a) Use your results to find estimate for the probability of drawing pin landing on its head

b) how could you improve your answer to part a.

  • The estimated probability might be different from the theoretical probability
  • Increasing the number of trails you take will make your estimate closer to the actual probability

Try this...

A gardener plants 60 seeds.

52 seeds germinate.

Work out an estimate for the probability that this type of seed will germenate

Starter

Objective

Developing students will be able to find an estimate of probability from the results of an experiment

Secure students will be able to compare experimental and theoretical probabilities

Drop a pin 25 times and record if lands on heads or tails

Relative Frequency

52

C =

60

1

Theoretical probability =

2

60

B =

52

1

A =

2

number of successful trials

Estimated Probability =

total number of trials

Learn more about creating dynamic, engaging presentations with Prezi