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Statistics

Median and modeStatistics

MeanStatistics

Range and outliersStatistics

Probability of independent events- Home
- Grade 9 Math
- Data Collection

Still Confused?

Try reviewing these fundamentals first.

Statistics

Median and modeStatistics

MeanStatistics

Range and outliersStatistics

Probability of independent eventsStill Confused?

Try reviewing these fundamentals first.

Statistics

Median and modeStatistics

MeanStatistics

Range and outliersStatistics

Probability of independent eventsNope, I got it.

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Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started Now- Intro Lesson: a9:56
- Intro Lesson: b10:03
- Lesson: 13:02
- Lesson: 2a2:00
- Lesson: 2b1:20
- Lesson: 2c1:10
- Lesson: 2d2:14

This lesson answers the question: What are the differences between mean, median and mode in statistics? Also, we will learn how to calculate the probabilities out of a two-way frequency table, and figure out the trends.

Related concepts: Application of averages, Determining probabilities using tree diagrams and tables,

- Introductiona)Introduction to probabilityb)Introduction to statistics:

• What is mean?

• What is median?

• What is an outlier?

• What is mode?

• What is range?

- 1.The following is the money raised in a school fund raising activity by each class in grade 9: $1 000, $580, $810, $1 050, $840 and $600. What is the mean, median and mode amount of money raised by these six classes?
- 2.Six hundred people were randomly selected in downtown. They were asked if they choose their clothes based on its comfort or style. The following is the results:

Comfort

Style

Total

Male

172

133

305

Female

115

180

295

Both

287

313

600

a)What is the probability that a person in the survey is a female?b)What is the probability that a person chooses comfort over style?c)What is the probability that a male chooses style over comfort?d)Was there any assumption made in this survey?

We have over 440 practice questions in Grade 9 Math for you to master.

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