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Using and Handling Data

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## AP Statistics

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Probability is the study of chance and is a very fundamental subject that we apply in everyday living, while statistics is more concerned with how we handle data using different analysis techniques and collection methods. Still need help after using our statistics resources?

Use our service to find a statistics tutor. This section deals with introducing the concept of statistics and its relevance to everyday life. Statistical averages are introduced and defined in this section. Mean, median, mode and range are discussed both at an introductory level and also at a more advanced level, like the concept of Assumed mean. Frequency and its aspects like Cumulative Frequency are also discussed.

This section serves as an introduction to the concept of Probability, including definitions of the different terminology and the fundamental method of calculating Probability. Different concepts like Dependence and Independence of Events are discussed including the methods of dealing with such concepts.

This section sets the stage for a more advanced view of Probability by introducing the idea of Random Variable and the meaning and types of probability distributions including Discrete and Continous Probability Distributions. Joint Probability Distributions are also discussed. First, you find the probability of drawing one blue ball: If the balls are drawn without replacement, then after every draw there will be one fewer ball in the pot, so the total number of balls for the second draw is This continues for all 5 balls drawn, so the probability of drawing five blue balls can be calculated by: Not Helpful 34 Helpful If I rolled a regular six sided die, what is the probability of getting a 5?

Not Helpful 15 Helpful I am doing an experiment and I want to find out the probability that a seed will germinate without water. How can I calculate this? Since a seed will not germinate without water, the probability will be zero. Not Helpful 20 Helpful It depends on the range of the random number generator. If two numbers are selected from 1 to 50, what is the probability that they will be divisible by 3 or 5?

There are 16 multiples of 3 in the 1 - 50 range 3, 6, 9, 12, 15, etc. There are 10 multiples of 5 in the 1 - 50 range 5, 10, 15, 20, etc. Of the multiples of 5, there are three which are also multiples of 3; i.

In the first selection there are 23 "winning values" out of 50; in the second selection assuming the original number is no longer available for the draw , there would be 22 "winning values" remaining out of the 49 numbers. Not Helpful 16 Helpful The only thing you can go off of is their skill.

Not Helpful 22 Helpful A fair coin is tossed 3 times in a row. What is the probability that heads will appear exactly two times? For this problem, it is helpful to draw a tree diagram. Branching out, you will have either an H or T for the first toss. For your second toss, you will now have an H and T branching out from each H or T from before.

Do this for a third toss. Not Helpful 47 Helpful When calling a coin toss, is the probability of winning each one of six tosses the same as the probability of winning all six times in a row? However, winning multiple tosses in a row is a dependent event - to get a streak of correct tosses, you have to win not only the current toss, but also the previous tosses. Not Helpful 24 Helpful What is the probability of drawing a face card or black card from a standard deck?

Since there are 4 colors and 3 face cards for each, that means 12 cards are face cards in a standard 52 card deck. Not Helpful 35 Helpful There are 36 possible combinations , , etc.

Count up the number of combinations of 8 , , , , , Divide total number of possibilities 36 by the number of combinations of 8 6. Not Helpful 38 Helpful Answer this question Flag as How do I calculate the probability of drawing a specific card from a 52 card deck if I have more than one chance to draw?

Please give an answer for 2, 3, or 4 chances, and indicate how you arrived at that. Include your email address to get a message when this question is answered. Already answered Not a question Bad question Other. By using this service, some information may be shared with YouTube. Quick Summary To calculate probability, you will need to divide the number of events, or what you want to calculate, by the number of possible outcomes, or how many total options there are.

Did this summary help you? Tips You can make your own subjective probability that is based on your opinions about the likelihood of an event. Subjective interpretation of probability will be different for each person. You can assign any numbers to events, but they have to be proper probabilities, which means following the basic rules that apply to all probabilities.

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Learn statistics and probability for free—everything you'd want to know about descriptive and inferential statistics. Full curriculum of exercises and videos. Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more.

Statistics and Probability. This website provides training and tools to help you solve statistics problems quickly, easily, and accurately - without having to ask anyone for help. Online Tutorials. Learn at your own pace.

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Statistics and Probability Statistics and probability are sections of mathematics that deal with data collection and analysis. Probability is the study of chance and is a very fundamental subject that we apply in everyday living, while statistics is more concerned with how we handle data using different analysis techniques and collection methods. Using and Handling Data. Data Index. Probability and Statistics Index.