"Using tree diagrams or tables to find probabilities" Further understanding of probability PPT courseware 3

Description

"Using tree diagrams or tables to find probabilities" Further understanding of probability PPT courseware 3

game rules:

Prepare two groups of identical cards, two in each group. The numbers on the two cards are 1 respectively. One test is drawn from each group of cards.

In the card drawing game, in the first trial, if the number on the first card drawn is 1, what is the probability of the number on the card being drawn when the second card is drawn?

What if the number on the first card drawn is 2?

Based on the records of the 30 trials you made, count the number of times when the number on the first card was 1 and the number of times when the number on the second card was 1 and 2.

equal probability of probability

In fact, in a trial, no matter what the number on the first card is, when the second card is drawn, the probability of getting the numbers 1 and 2 is the same.

Tabulate probabilities

As can be seen from the tree diagram or table above, there are 4 possible results in a test: (1,1), (1,2), (2,1), (2,2), and each result The probability of occurrence is the same. In other words, the probability of each outcome is 1/4.

Teacher Tips:

The probability of certain events occurring can be more easily calculated using a tree diagram or table.

Represent probabilities as a tree diagram or table

Use a tree diagram or table to clearly represent all possible outcomes of an event;

This makes it easier to find the probability of certain events occurring.

Keywords: Teaching courseware for further understanding of probability, using tree diagrams or tables to find probability teaching courseware, Beijing Normal University edition ninth grade mathematics volume PPT courseware, download of ninth grade mathematics slide courseware, downloading PPT courseware for further understanding of probability, using trees Download the PPT courseware for calculating probability with state diagram or table, in .ppt format

For more information about the PPT courseware "further understanding of probability and using tree diagrams or tables to calculate probability", please click the further understanding of probability ppt to use tree diagrams or tables to calculate probability ppt tags.

"Using tree diagrams or tables to find probabilities" Further understanding of probability PPT courseware 4:

"Using Tree Diagrams or Tables to Calculate Probability" Further Understanding of Probability PPT Courseware 4 Probability can use tree diagrams or tables to clearly express all possible outcomes of an event; thus it is easier to calculate the occurrence of certain events Probability. With purple game small..

"Using tree diagrams or tables to find probabilities" Further understanding of probability PPT courseware 2:

"Using Tree Diagrams or Tables to Find Probabilities" Further Understanding of Probability PPT Courseware 2 Do you remember? There are some things in life that we can first be sure will definitely happen. These things are called inevitable events. Some things we can first be sure that they will definitely not happen. These things are called impossible..

"Using Tree Diagrams or Tables to Find Probabilities" PPT courseware for further understanding of probability:

"Using Tree Diagrams or Tables to Find Probabilities" Further understanding of probability PPT courseware The relationship between frequency and probability When there are many trials, the frequency of an event is stable around the corresponding probability. Therefore, we can use the frequency of an event through multiple trials Let's estimate...

File Info

Update Time: 2024-07-03

This template belongs to Mathematics courseware Beijing Normal University Ninth Grade First Volume Mathematics industry PPT template

Preview