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Probability Lesson Video Part 2

Added Apr 07, 2020 •

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This is part 2 of the introduction to probability video. This video must be watched on both Days 1 and 2 of our unit. You may also re-watch as needed.

Show Transcript

so now we're going to talk about probability with a die or number cube has board games that you roll them and it gives you a number so how many different numbers are on here so there was a moron 3 4 5 and a split each number only appears one time so there are six possible outcomes for a number cube so if you want to text like the problem probability so there's only one one on the number keys so we're going to say one out of six possible outcomes which is 1 out of 6 what's a we want to find the probability of rolling a 4 so how many floors are there I'm only saying 1 4 2 1 4 out of 6 possible outcomes is one out of and if you were to find the probability of each of these days I'll be one out of six because each number only appears one time so let's look at this probability number line so we know we have a zero and one with 0 they impossible in one certain so since we have six possible outcomes we need to divide the six sections so there's one two three four the probability of getting a woman was one out of six run out of stick so if you look at this is there anywhere near halfway what would be halfway have finding 1 2 3 out of 6 be halfway and we said halfway net and was equally likely so AR-16 is between impossible and equally likely week say that this is unlikely unlikely to get one Saints Row 4 it's still be right here when I was 6 it's unlikely to get a for you have so many different outcomes that's unlikely that you won't get one specific one that you want the last example we're going to look at what is a custom color dye in it and I draw take one out of this cut what are my chances what colors am I going to get differently in this cup I have three blue one light into red number cubes are dyes whichever the first so I want to know like what are my chances of getting a blue dye side Rollin will it be blue I got a blue one so let's work this out he said they were six number cubes mistakes died there were three blue red and one white number keys this is my total cuz there was $6 in the cup and there is three different colors so since we we have three colors to choose from that means there are three outcomes three different outcome so we can get another six total dies the reason we say there is three outcomes is cuz there's only three different colors let's find the probability of getting a blue so we said they 3 blue dies in the cup out of the six total so then we have 3 out of 6 Infrared there is two and there were six total that means two out of the six died six dice were red if you have one number to you by itself it's called to die ring in the last hour of white we have one white dye out of this  died so one out of six or whenever sick we can put these on a number line probability number one draw it out here we have 0 and 1 so 0 is 0 impossible certain what 0 should have said impossible impossible all right that what's 1 what is it should be start so we have some impossible to starting the sticks we have six total died six total number keys and Maze We need six sections on our number line that you need to make sure they're even if not it won't look right but needs to be the same amount of space between each marks 01 2 3 4 5 and 6 start graphing so we have three blue dye out of the stacks at 3 or 6 so we can count one two three 3 out of 6 is right here so get in your vocabulary we know we have been possible and likely equally likely likely and certain where do you think this one would fall is it impossible and likely equally likely likely or start Getty should have said equally likely you know why equally likely is because it is in the middle of the line 3 is half of 6 you divide 6 by 2 you would get three there for when you have graphing on the line to see if the Middle Tennessee have your chance is getting a blue dye all right was stuck at the red it's 2 out of 6 so we going to count one to write so what does be impossible unlikely equally likely likely you're starting you should have said unlikely because the tempted it's less than the 1/2 and 1/2 Market should be right here is only two so it's less likely to get it compared to the blade I'm so weak set unlikely because cleanest and possible in equally likely I last when why we say that we have there's a way of getting I want die so we just got here to 1 one out of sticks and would it be impossible unlikely equally likely likely or certain this should be unlikely because again West 1/2 Mark but is still greater than zero so you have a chance of getting it it's just not a very big chance because there is only one number cube in the cut that's white though we can say that are so I want you to tell me this what color do you have the biggest chance of getting you should have said blue because there's three blue never keeps the cup which is more than any other color that means more than likely if you were to school like you out of the stuff they would be blue I happen to get ready cuz just cuz it's unlikely does not mean that I can't get red at all can you think of a color that would be impossible to plow the cup you could be green purple black impossible because because there is not any in the cup are there any colors that are starting that no matter what I'm going to get that color no there's no colors that are starting because I still have the chance of getting any three of these colors have a greater chance of getting blue because there are more blue number cubes but like you just saw you know I have the greater chance of getting blue the red out it tells me that none of these colors are starting in order for it to be certain they all have to be blue or Allred I'll have to be the same color

Uploaded by Christy Haworth.

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