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bighead    
n. 自大

自大

bighead
n 1: any of various diseases of animals characterized by edema
of the head and neck


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英文字典中文字典相关资料:


  • Probability: the basics (article) | Khan Academy
    Probability is simply how likely something is to happen Whenever we’re unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are The analysis of events governed by probability is called statistics View all of Khan Academy’s lessons and practice exercises on probability and statistics
  • Theoretical and experimental probabilities - Khan Academy
    The experimental probability of an event is an estimate of the theoretical (or true) probability, based on performing a number of repeated independent trials of an experiment, counting the number of times the desired event occurs, and finally dividing the number of times the event occurs by the number of trials of the experiment
  • The general multiplication rule (article) | Khan Academy
    Learn the general multiplication rule for probabilities with interactive exercises and examples on Khan Academy
  • Statistics and Probability (video) - Khan Academy
    We give you an introduction to probability through the example of flipping a quarter and rolling a die
  • Binomial variables (video) | Khan Academy
    An introduction to a special class of random variables called binomial random variables
  • Expected value (basic) (article) | Khan Academy
    Expected value uses probability to tell us what outcomes to expect in the long run
  • Constructing a probability distribution for random variable
    Sal breaks down how to create the probability distribution of the number of "heads" after 3 flips of a fair coin
  • Random variables and probability distributions | Khan Academy
    A random variable is some outcome from a chance process, like how many heads will occur in a series of 20 flips, or how many seconds it took someone to read this sentence Calculate probabilities and expected value of random variables, and look at ways to transform and combine random variables
  • Measures of spread: range, variance standard deviation
    Range, variance, and standard deviation all measure the spread or variability of a data set in different ways The range is easy to calculate—it's the difference between the largest and smallest data points in a set Standard deviation is the square root of the variance Standard deviation is a measure of how spread out the data is from its mean
  • Random variables (video) | Khan Academy
    Basic idea and definitions of random variables I did not get the last bit of the first video, could you tell me the difference between a general variable like 'x' and a random variable X = {all possible outcomes of an event} Can I say that, all the possible outcomes of an event can be denoted by different variables, and a set of these variables is a Random Variable?





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