Probability and Statistics

Probability and Statistics is one of the five ‘strands’*that the State of California says 6 th grades should know.

Probability and Statistics Probability and Statistics is one of the five ‘strands’*that the State of California says 6 th grades should know. * strands are general ideas that contain specific standards. Specific standards (like dividing fractions, or multiplying decimals, or finding the area of a circle) are what we math teachers teach you.

Probability and Statistics The five California 6 th grade strands are: Probability and Statistics Geometry Algebra and Functions Number Sense Mathematical Reasoning Just so you know...

California 6 th grade strands Probability and Statistics Geometry Algebra and Functions Number Sense Mathematical Reasoning Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

California 6 th grade strands Probability and Statistics Geometry Algebra and Functions Number Sense Mathematical Reasoning Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

California 6 th grade strands Probability and Statistics Geometry Algebra and Functions Number Sense Mathematical Reasoning Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain.. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

California 6 th grade strands Probability and Statistics Geometry Algebra and Functions Number Sense Mathematical Reasoning Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

California 6 th grade strands Probability and Statistics Geometry Algebra and Functions Number Sense Mathematical Reasoning Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

California 6 th grade strands Probability and Statistics Geometry Algebra and Functions Number Sense Mathematical Reasoning Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

Math is good for you. Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

Math is good for you. Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

Math is good for you. Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

Math is good for you. Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can master a particular type of math. (make good money, have a job, support your self and your family, not be a bum)

Probability and Statistics and last night’s homework

population is the entire group of objects or individuals being surveyed (asked what you think, like our instapoll)

sample is a small part of the population that likely to be surveyed

population is the entire group of objects or individuals being surveyed (asked what you think, like our instapoll) sample is a small part of the population that likely to be surveyed random sample is when people or things are selected (picked) at random to be part of the survey.

biased sample is a sample that does not fairly represent the population (biased means unfair, not even chance) The first 50 people leaving a country music show are surveyed (asked, polled) to find out what type of music the people in town like to listen to. Is this survey biased or not biased?

biased sample is a sample that does not fairly represent the population (biased means unfair, not even chance) The first 50 people leaving a country music show are surveyed (asked, polled) to find out what type of music the people in town like to listen to. Is this survey biased or not biased? This survey is biased because it’s not likely that everyone in town likes country music

If a survey is not biased, that survey is called representative

If a survey is not biased, that survey is called representative Mr. Feil randomly pulls 50 students’ names from a hat containing every RMS student’s name to determine what is our school’s favorite lunchtime activity.

If a survey is not biased, that survey is called representative Mr. Feil randomly pulls 50 students’ names from a hat containing every RMS student’s name to determine what is our school’s favorite lunchtime activity. Is this survey biased or representative?

If a survey is not biased, that survey is called representative Mr. Feil randomly pulls 50 students’ names from a hat containing every RMS student’s name to determine what is our school’s favorite lunchtime activity. Is this survey biased or representative? This survey is representative because every student had an equal chance of being surveyed. Remember, biased means not fair, not an equal chance

sample means some of a population but not everyone random sample means people or things are survey randomly, every thing has an equal chance biased means not fair, not everyone gets an even chance representative (not biased) means fair, everyone gets an even chance Probability and Statistics

sample means some of a population but not everyone random sample means people or things are surveyed randomly, every thing has an equal chance biased means not fair, not everyone gets an even chance representative (not biased) means fair, everyone gets an even chance Probability and Statistics

sample means some of a population but not everyone random sample means people or things are surveyed randomly, every thing has an equal chance biased means not fair, not everyone gets an even chance representative (not biased) means fair, everyone gets an even chance Probability and Statistics

sample means some of a population but not everyone random sample means people or things are surveyed randomly, every thing has an equal chance biased means not fair, not everyone gets an even chance representative (not biased) means fair, everyone gets an even chance Probability and Statistics

Math is good for you. Each strand has its own unique usefulness in the real world. (different types of math solve different types of problems) Understanding math, like playing music, is good for the brain. (logic, reasoning, patterns, focus, rewards) You can make good money and jobs will be available if you really learn and can m (make good money, have a job, support your self and your family, not be a bum) Remember...