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What is the probability of obtaining a score from a distribution that would have a z score of -1.55 or smaller?
Wiki User
∙ 10y ago
It is 0.0606
Wiki User
∙ 10y ago
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How do you find z score in first quartile?
Provided the distribution is Normal, the z-score is the value such that the probability of observing a smaller value is 0.25. Thus z = -0.67449
What is the probability of rolling a pair of dice and obtaining a total score of 9 or greater?
It is 5/18.
What is the probability of rolling a pair of dice and obtaining a total score of 9 or more?
It is 10/36 = 5/18
What is the probability that a randomly selected case from a normally distributed distribution will have a score between -1.00 and the mean?
The answer is 0.1586
What is the probability that a data value in a normal distribution is between a z-score of -1.98 and a z-score of 1.11 Round your answer to the nearest tenth of a percent?
It is 84.3%
How do you find z score in first quartile?
Provided the distribution is Normal, the z-score is the value such that the probability of observing a smaller value is 0.25. Thus z = -0.67449
What is the probability of obtaining a z-score less than 0.50?
It is 0.6915
What is the probability of rolling a pair of dice and obtaining a total score of 9 or greater?
It is 5/18.
What is the probability of rolling a pair of dice and obtaining a total score greater than 9?
It is 1/12.
What is the probability of rolling a pair of dice and obtaining a total score of 9 or more?
It is 10/36 = 5/18
What is the probability that a randomly selected case from a normally distributed distribution will have a score between -1.00 and the mean?
The answer is 0.1586
What is the probability that a data value in a normal distribution is between a z-score of -1.98 and a z-score of 1.11 Round your answer to the nearest tenth of a percent?
It is 84.3%
What is the relationship between the Z-score for Normal Distribution and Continuous Probability?
There is no real relationship. Probabilities for the Normal distribution are extremely difficult to work out. The z-score is a method used to convert any Normal distribution into the Standard Normal distribution so that its probabilities can be looked up in tables easily. There are infinitely many types of continuous probability distributions and the Normal is just one of them.
What does a z score of -4 indicate?
It means that your raw score is four standard deviations below the mean. This will mean different things depending on the context of the question. If you're looking at the probability of a single score occurring in a given distribution (say, a score of 40 in a distribution of scores with a mean of 80 and a std. dev. of 10), then this means that the probability of getting a 40 is very, very low--less than .00002.
Define p-value vs - z score?
The p-value is the probability of any event or the level of significance for any statistical test. The z-score is a transformation applied to a Random Variable with any Normal distribution to the Standard Normal distribution.
What is the probability of randomly selecting a score from a normal distribution with a value greater than z equals -2?
Pr(Z > -2) = 97.725%
What is the probability of finding a T value greater than t.845 given that sample size is 95?
There is not enough information in the question to determine if the t-distribution is the appropriate model to use. If it is, then, with, a sample size of 95 the z-score for the Gaussian distribution is a suitable approximation. The probability is 0.199, approx.
