A. The data is symmetric. B. The data is positively skewed. C. The data is negatively skewed. D. There is not E. nough information to determine the skew. 相关知识点: 试题来源: 解析 C。在一个数据集中,如果众数为 15,中位数为 20,说明数据是负偏态的。因为众数小于中位数,数据在较小的...
The data is relatively concentrated C. The data has a lot of outliers D. The data is inaccurate 相关知识点: 试题来源: 解析 B。方差较小表明数据相对集中。选项 A,数据高度分散时方差较大。选项 C,方差大小与异常值数量并非直接相关。选项 D,方差小不能说明数据不准确。反馈 收藏 ...
In data cleaning, if there are missing values in a dataset, what is a common approach? A. Ignore the missing values. B. Replace the missing values with the mean of the non-missing values. C. Remove the entire row or column with missing values. D. Leave the dataset as it is. ...
A dataset is a collection of data that can be used for analytics or to train machine learning models.
Solution:We have to create a table using the given data that depicts the number of students playing their favorite games: So, soccer is played by the majority of students. Hence, the mode in this example is Soccer. Example 5:The table shows the prices of six art portraits from an online...
A phrasal verb is a verb used with an adverb or preposition carrying a specific meaning, e.g. Etymology:An etymology explains the historical origin of the word. Depending on the style of the dictionary, an etymology can be as simple as stating the language the word came from or may give...
To calculate the geometric mean, multiply all the values in a dataset, then take the root of the sum equal to the number of values within that dataset. Eliana Rodgers / Investopedia Arithmetic Mean The arithmetic mean is the simple average or sum of a series of numbers divided by the count...
Model Builder uses automated machine learning (AutoML) to find the best model for your data. AutoML automates the process of applying machine learning to data. You can run an AutoML experiment on a dataset to iterate over different data transformations, machine learning algorithms, and settings, ...
in machine learning (ML), prescriptive analytics can help answer questions such as “What if we try this slogan?” and “What is the best shirt color for an older demographic?” You can test variables and even suggest new options that offer a higher chance of generating a positive outcome....
A mosaic dataset allows you to store, manage, view, and query small to vast collections of raster and image data.