The points obtained by students of a class in a test are normally distributed with a mean of 60 points and a standard deviation of 5 points. About what percent of students have scored less than 45 points? a. 0.15 b. 2.5 c...
60 0 10 20 30 40 0 50 60 70 80 90 100 260 Ta ( ) INPUT VOLTAGE File Name:P50A-T-SPEC 2007-05-14 P50A14-R1B 相关器件 型号 制造商 描述 价格 文档 P50A14E-R1B MEANWELL 46.5~50WAC-DC Triple Output Desktop 获取价格 P50A16-R1B MEANWELL 44~49WAC-DC Dual Output ...
Of 300 students that took a reading ability test, how many would you expect to earn a score of less of than 81 points given that the scores of the students have a mean of 65 points and a standard deviation of 8 points? By the 68.26-95.44-99.72 ...
of a Ca2+channelagonist, are occasionally found. Kinetic description of these long openings requires a rate constant for the channel closing that is 100 times lower than that in the more typical short opening behaviour388,389. The two types of gating behaviour have been termed ‘mode 1’ (...
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(C) 100 (D) 150 (E) 200 免费查看参考答案及解析 题目: If the average (arithmetic mean) of x and y is 40, and z-x=60, what is the average of y and z ?() A. 20 B. 50 C. 65 D. 70 E. 140 免费查看参考答案及解析
If the threshold identity score is between 60% and 50%, the -t parameter was used with a value of 3. When the threshold identity score is less than 50%, the -n parameter was used with a value of 3. MeShClust v1.0 was run with the “threads” parameter with a value of 16. For...
Example 3:Find the geometric mean of the following grouped data for the frequency distribution of weights. Weights of Cellphones (g)No of Cellphones (f) 60-8022 80-10038 100-12045 120-14035 140-16020 Total160 Solution: Let us uselog tablefor calculating the log values of "mid x". ...
The harmonic mean, in the context of the Social Sciences, refers to a statistical measure calculated by taking the reciprocal of each number in a set, summing the inverses, and dividing the sum by the number of data points. It is commonly used in statistical procedures, such as calculating ...