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单词 Standard deviation
例句
1. Mean and standard deviation figures therefore include these two patients.
2. Mean and standard deviation of normally distributed results are shown; otherwise median and range are given.
3. The standard deviation can usefully be visualized as the distance from the mean to the point of inflection of the bell-shaped curve.
4. The distribution remains normal but the standard deviation decreases as the square root of n, the sample size.
5. The specific dictionaries show a standard deviation of 9.95%, whereas for the general dictionaries this figure is only 5.95%.
6. Across the 15 domains they show a standard deviation of 9.95%, as compared to 5.95% for the general dictionary.
7. Error bars show one standard deviation to give some idea of the variability among the six films.
8. The standard deviation of the differences between actual and scheduled train arrival times is 90 seconds.
9. The standard deviation of the estimate of, B is calculated as follows: therefore, the standard deviation is:.
10. All maps show electron density contoured at 1 standard deviation, with the current model displayed for comparison.
11. Computative program of mean and standard deviation.
12. A volatile stock would have a high standard deviation.
13. Calculate the standard deviation based on the entire population.
14. Uncertainty of Sample Mean and Standard Deviation.
15. Both range and its standard deviation are calculated according to surface energy approximation and mean energy approximation.
16. Standard deviation of current noise is qualified to compare corrosion rates of metals with the same corrosion type.
17. The standard deviation of a well - diversified portfolio is proportional to its beta.
18. The standard deviation of a sampling distribution. It is the statistic used to make statements about the accuracy of estimates based on sample information.
19. The results show that standard deviation and coefficient of variation of indicated mean effective pressure are the best parameters.
20. Respiratory symptoms were analysed by multiple logistic regression and lung function standard deviation scores by multiple linear regression.
21. The statistic most often used to measure within-group variability is the standard deviation,(http://) although there are other possibilities.
22. Eighty-two percent of the papers are published within one standard deviation on either side of the mean.
23. Five replicates were performed per drug dilution and the standard deviation of the mean is shown.
24. In either case the system is out-of-control, although all values lie within the 2 standard deviation range. 62.
25. This variation in performance is further reflected by the higher standard deviation of the specific dictionaries.
26. The horizontal axis is now calibrated in units of beta rather than the standard deviation of expected returns.
27. The analysis of measurement data error by using rear-average method was discussed. The method to count standard deviation of indirect measurement value by using rear-average method was proposed.
28. The direct potentiometry for samples shows 100.9% of average recovery and 1.3% of standard deviation.
29. We shall standard error of estimate as a tool in the same way standard deviation.
30. The variance of a random variable is the square of its standard deviation.
31. For example, one may need to generate samples drawn from a normally distributed population or may need to compute the standard deviation of a large data set or plot a histogram.
32. The modified readout noise measurement is based on the standard deviation of ain the overscan image.
33. A . A . Standard deviation tells you if the duration is realistic.
34. The mean and standard deviation of the critical gap length are obtained in the complex modal space.
35. The result shows that standard deviation is 0.02, coefficient of variation linear correlation is 0.9996.
36. The relative standard deviation was less than 10%, The corr...
37. The statistical methods used are general statistical description (such as mean and standard deviation), repetitive measurement deviation analysis, clustering analysis and multiple linear regression.
38. Distance between the process mean and the lower specification limit scaled using the process standard deviation.
39. Firstly, a gradient operator based on local standard deviation is performed and potential edge regions are well separated.
40. However, if we construct a comprehensive measuring index using the method of standard deviation and mean difference maximization and assimilate the advantages of the above indexes, we can.
41. But according to the coefficient of standard deviation, the income differential among industries in China kept overall expanding from 1978 to 2007.
42. Under three process variation, comparing the optimized 1st-order model to the 1st-order model used by Star-RCXT VX, the mean error is decreased by 53% and standard deviation is decreased by 22%.
43. Through analyzing error and standard deviation, the paper comes up with the probability significations. It further identifies the significance in the accurate statistics in arithmetical average error.
44. Multi-scan program recipe capability standard with statistical report generating software to calculate standard deviation and mean.
45. Calculate the standard deviation using the fields that match the search criteria.
46. The combustion pressure standard deviation increases with the advance of the ethanol injection timing, and correspondingly, the engine operation becomes more and more unsteady.
47. Relative standard deviation of this method is below 3 %.
48. Straight channels or envelopes work better for profit taking than standard deviation channels, or Bollinger bands.
49. The best efficient portfolio offers the highest ratio of forecasted risk premium to portfolio standard deviation.
50. The standard deviation of drift distance also increases with sounding balloon ascent. The distribution of standard deviation is consistent with the drift distance.
51. The mean sensitivity coefficient and the standard deviation sensitivity coefficient are strongly related and both can be used to identify key contributing random variables.
52. The standard deviation increased sharp in the formation of large gas bubbles in the downcomer .
53. The relative standard deviation should be no greater than 2.0 %.
54. The situation of pressure cyclic variation can clearly express with the circumstance of standard deviation and coefficient of pressure cyclic variation at each crank angle.
55. The results show that the combined discrete-continuum model is a small standard deviation for the average error, although its absolute errors are larger than ones of continuum model.
56. The standard deviation from the mean is the preferred quantity.
57. It is found that the sample mean is 4.21" and the standard deviation is 0.09" Find a 98% confidence interval for the true population variance.
58. The method to count standard deviation of indirect measurement value by using rear - average method was proposed.
59. Results The correction factor was 0.8551 and relative standard deviation ( RSD ) was less than 3.5 %.
60. It was well to separate constitutions in carbonylation liquid of ethanol. The retrievability was 99% and opposite standard deviation was 0.4%.
61. Noise scale factor is introduced and used to describe and process the standard deviation of photoelectrons of photodetector.
62. Good reappears were obtained in control of reasonable operation parameters, U'1 and U'2, under the suitable dilution ratio, within 2.5% relatively standard deviation.
63. The lines represent the mean achieved across 200 monte-carlo runs, and the error bars show the corresponding standard deviation when the inductances and capacitors have tolerances of 5%, 2% and 1%.
64. The standard deviation between the predict data and the original data was 1.88. It can conclude that the Bezier function is available to fit the washability curves.
65. Maximum track irregularity is the evaluate index in emergency maintenance and standard deviation of section track irregularity is the evaluate index in track maintenance machine work.
66. Furthermore we assume that each observation of the time series has the same expectation function, standard deviation, and probability distribution function.
67. The standard deviation is the square root of the variance.
68. Based on the standard deviation method, optimum model can be selected.
69. The standard deviation and the maximum deviation between the experimental results and the calculated ones from the viscosity equation of saturated liquid are 0.58% and 2.10%, respectively.
70. Compared with the conventional PID masterslave control method, the move mean difference is reduced by 18.2% and the move standard deviation is reduced by 61.5%, and the exposure effect can be ensured.
71. The regression coefficient between the standard deviation of B value and sense scores of bread crumb grain is 081.
72. The abnormal area delineated by using this method is smaller than that delineated by the standard deviation and isoline methods, characterizing the true anomalous boundary.
73. The proposed statistical SS2M model has an average error of 4.16% with respect to SPICE Monte Carlo simulations, with an average error of standard deviation of only 3.06%.
74. Based on the WGI, the researchers estimate that when governance is improved by one standard deviation, incomes rise about three-fold in the long run, and infant mortality declines by two-thirds.
75. Entropy, standard deviation, mean absolute deviation of the PD gray images are extracted and the acquired characteristics are analyzed for five types of discharge pattern recognition.
76. The recovery of the myricetin is 98%-102%, and relative standard deviation is 1.6% -2.1%. This method was applied to the determination of myricetin in myrica rubra leaf and bark with good results.
77. What does the standard deviation have to do with risk?
78. This spread of possible outcomes is usually measured by standard deviation.
79. In mutual funds, the standard deviation tells us how much the return on the fund is deviating from the expected normal returns.
80. Measurement of the magnitude of analytical background response is performed by analyzing an appropriate number of blank samples and calculating the standard deviation of these responses.
81. This thesis is to analyze the coefficient of standard deviation of the earnings before interest and tax and the earnings per share.
82. The research tool was self-developed questionnaire. The data were analyzed with SAS PC software on percentage, average mean, and standard deviation for descriptive analysis.
83. Standard deviation tells you if the estimate includes a pad.
84. The data are analyzed by using the average, standard deviation, t-test, one-way analysis of variance, Pearson's production-moment correlation, and multiple stepwise regressions.
85. The positive square root of the variance is called the standard deviation.
86. On the scale, the slope of the straight line provides a measure of the standard deviation.
87. Thus , requirements should , ideally, be expressed in terms of a mean and standard deviation.
88. Test result in many times indicated that the detection value was all in the control limit. The relative standard deviation was 0 . 7% with high accuracy .
89. What's more, the relationship between the replacing errors and the standard deviation of demand, fraction of demand returned as well as the order lead time were analyzed.
90. Consequently, it is also necessary to estimate the forecast error, which may be represented by the standard deviation or the Mean Absolute Deviation(MAD).
91. The curve approximated by the mean value and standard deviation cyclic strain - life curves of Coffin - Manson law.
92. Distance between the process mean and the lower specification limIt'scaled using the process standard deviation.
93. In this paper, we calculate average deviations and give two kinds of estimate of standard deviation for the normal population.
94. The usual measure of this spread is the standard deviation or variance.
95. Measurements: Glucose variability was calculated for all subjects as the average and standard deviation of glucose, the mean amplitude of glycemic excursions, and the glycemic lability index.
96. The ave rage recovery was 97.2 % with relative standard deviation of 3.4 %.
97. It is simple and quick for GFAAS to determine trace Sb in pure Cu, the relative standard deviation( RSD) is 6.90 % ,(http:///standard deviation.html) and the error is 5.56 % .
98. This paper expounds evaluation method and course of uncertainty in DJ 2 - theodolite level standard deviation ofcircle measurement.
99. The values monitored were of logarithmic normal distribution; unbiased estimations of mean and standard deviation of MLE were 34.
100. Experiment results shows the rate of recovery is 100% , the standard deviation is 2.04, the relative standard deviation is 2.04% .
101. Calculate the variance and standard deviation of this rate of return.
102. Standard deviation were all unpredicted and the absolute relative errors were less than 6.6%.
103. The ratio of monthly mean error to standard deviation is used to find out where the systematic errors should be applied.
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