TB MC Qu. 06-24 Of the following measures, the...

Of the following measures, the best way to analyze the variability in the sample is to consider the:

Question

TB MC Qu. 06-24 Of the following measures, the...

Of the following measures, the best way to analyze the variability in the sample is to consider the:

BlackTom AI · Accepted Answer

In analyzing variability within a sample, different statistical concepts highlight different aspects of the data. 
Option 1: maximum or minimum. These indicate the range endpoints, which give a sense of spread but only capture the extremes, not the overall variability among all observations. They are highly sensitive to outliers and do not summarize dispersion comprehensively. 
Option 2: standard deviation. This statistic measures the average distance of each data point from the mean, providing a concrete summary of dispersion across the entire dataset and is the standard tool for quantifying variability in a sample. It accounts for all observations rather than just extremes. 
Option 3: mode. The mode tells you the most frequent value, which is a measure of central tendency and does not describe how spread out the data are. It gives no information about variability in most contexts. 
Option 4: mean. The mean is a measure of central tendency, representing the average value, but it does not describe how dispersed the values are around that average. It lacks information about the spread itself. 
Therefore, considering variability in the sample is best captured by a statistic that quantifies dispersion across all data points, namely the standard deviation, rather than solely focusing on a single extreme value, a most frequent value, or the central location alone.

TB MC Qu. 06-24 Of the following measures, the... Of the following measures, the best way to analyze the variability in the sample is to consider the:

查看解析

登录即可查看完整答案

类似问题

Question at position 48 IQs among undergraduates at Mountain Tech are approximately Normally distributed. The mean undergraduate IQ is about 110. About 95% of undergraduates have IQs between 100 and 120. The standard deviation of these IQs is about255151020

Question at position 46 If 30 is added to every number on a list, the only one of the following that is not changed isThe medianThe meanThe standard deviationThe 75th percentileThe mode

Question at position 9 ________ is a measure of dispersion that indicates how much the scores in a sample vary around the mean of the sample.RangeMedianCorrelation coefficientStandard deviation

位置24的问题 A stock had returns of 5 percent, 14 percent, 11 percent, −8 percent, and 6 percent over the past five years. What is the standard deviation of these returns?7.74%8.44%9.68%7.49%8.21%清除选择

A stock had returns of 16.15 percent, −6.15 percent, and 23.45 percent for the past three years. What is the standard deviation of the returns?

For some value of p, we have E[X]=11.2 and Var[X]=50.56. What is the standard deviation of (-4)*X?

Let r=0.62, c=2.2 and m=1.2. Suppose that UC and UM are independent. What is the standard deviation of the point spread in the UBC game? Enter "999" if there is insufficient information to answer.

Suppose q=0.3. Then, the expected value of X is 2. What is the standard deviation of X?

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单