Answer to: The normal distribution curve is sometimes symmetric to its mean True False Explain. By signing up, you'll get thousands of step-by-step...
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distribution that is symmetric about the mean, i.e., the right side is a mirror image of the left side, indicating that the data near the mean occur more frequently than those at a distance from the mean. The area under the normal distribution curve represents the probability, and the ...
A. The total area under the curve is 1. B. The mean, median, and mode are all different. C. It is symmetric about the mean. D. The curve is bell-shaped. 相关知识点: 试题来源: 解析 B。均值、中位数和众数在正态分布中是相等的。本题考查了正态分布的性质以及对句子的否定判断。反馈...
Normal distribution, also known as the Gaussian distribution, is a probability distribution that is symmetric about the mean,showing that data near the mean are more frequent in occurrence than data far from the mean. In graph form, normal distribution will appear as a bell curve. ...
The presence ofasymmetry in the distribution of financial returns is not only an importantfactor which should be considered in the process of optimal portfolioallocation, but also one of the variables having close relationship with therecognition......
The shape of the distribution curve is symmetric and bell-shaped. What kind of distribution is it? A. Normal B. Skewed left C. Skewed right D. Bimodal 相关知识点: 试题来源: 解析 A。本题考查正态分布的特征。分布曲线形状对称且呈钟形,是正态分布。选项 B 左偏态分布、选项 C 右偏态分布...
Normal distribution is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean. The total area under Normal probability curve is one. Per...
Skewness measures the degree of symmetry of a distribution. The normal distribution is symmetric and has askewnessof zero. If the distribution of a data set instead has a skewness less than zero, or negative skewness (left-skewness), then the left tail of the distribution is longer than the ...
The t-distribution is a continuous probability distribution of the z-score when the estimated standard deviation is used in the denominator rather than the true standard deviation. The t-distribution, like the normal distribution, is bell-shaped and symmetric, but it has heavier tails, which means...