Lab 2 - Word Khalia Merriweath Layout References Mailings Review View Help Tell me what you want to do 11 Aa - E-E-E- EE 21 AaBbCcl AaBbCcDd AaBbCcD AaBbCcl AaB AaBbCcD abɛ x, x A a - A- T Heading 1 T Normal I No Spac. Heading 2 Title Subtitle SL Font Paragraph Styles 2. In January 2018, a sample of 417 students from a local community college student body was taken. Each student was asked whether they were right- or left-handed. Use the data results shown below to answer the questions. Left Right Total Female 25 239 264 Male 29 124 153 Total 54 363 417 Suppose a student is chosen at random from this sample. Show your work by giving the fraction using the numbers in the table above. Then give the decimal value rounded to 4 decimal places. A Find the probability that the student is left-handed. B. Find the probability that he is left-handed, given that the student is male. C. Find the probability of being left-handed and male. D. Find the probability of being left-handed or male. E. Are the events "male" and "left-handed" mutually exclusive? Why or why not? へ ) prt sc 19% A15 & 8.
Addition Rule of Probability
It simply refers to the likelihood of an event taking place whenever the occurrence of an event is uncertain. The probability of a single event can be calculated by dividing the number of successful trials of that event by the total number of trials.
Expected Value
When a large number of trials are performed for any random variable ‘X’, the predicted result is most likely the mean of all the outcomes for the random variable and it is known as expected value also known as expectation. The expected value, also known as the expectation, is denoted by: E(X).
Probability Distributions
Understanding probability is necessary to know the probability distributions. In statistics, probability is how the uncertainty of an event is measured. This event can be anything. The most common examples include tossing a coin, rolling a die, or choosing a card. Each of these events has multiple possibilities. Every such possibility is measured with the help of probability. To be more precise, the probability is used for calculating the occurrence of events that may or may not happen. Probability does not give sure results. Unless the probability of any event is 1, the different outcomes may or may not happen in real life, regardless of how less or how more their probability is.
Basic Probability
The simple definition of probability it is a chance of the occurrence of an event. It is defined in numerical form and the probability value is between 0 to 1. The probability value 0 indicates that there is no chance of that event occurring and the probability value 1 indicates that the event will occur. Sum of the probability value must be 1. The probability value is never a negative number. If it happens, then recheck the calculation.
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