Percentile
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This document discusses different methods for calculating percentiles from a data set: 1) The index method calculates the percentile by taking the index number of the data point and dividing it by the total number of data points. 2) The rank method ranks all data points from lowest to highest and calculates the percentile by dividing the rank by the total number of data points. 3) Examples are provided to demonstrate calculating the 50th percentile using both the index method and rank method on sample data sets.
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If you happen to like this powerpoint, you may contact me at flippedchannel@gmail.com
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If you happen to like this powerpoint, you may contact me at flippedchannel@gmail.com
I offer some educational services like:
-powerpoint presentation maker
-grammarian
-content creator
-layout designer
Subscribe to our online platforms:
FlippED Channel (Youtube)
http://bit.ly/FlippEDChannel
LET in the NET (facebook)
http://bit.ly/LETndNET
Measures of Variability
This document discusses measures of variability, which refer to how spread out a set of data is. Variability is measured using the standard deviation and variance. The standard deviation measures how far data points are from the mean, while the variance is the average of the squared deviations from the mean. To calculate the standard deviation, you take the square root of the variance. This provides a measure of variability that is on the same scale as the original data. The standard deviation and variance are widely used statistical measures for quantifying the spread of a data set.
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三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
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Percentile
- 2. PERCENTILE “Percentile” is in everyday used, but there is no universal definition for it. The most common definition of a percentile is a number where a certain percentage of scores fall below that percentile.
- 3. METHODS INDEX METHOD RANK METHOD
- 4. INDEX METHOD Q; 7,4,3,6,8,13 & 15. K=50 Ascending order = 3,4,6,7,8,13,15 n=7 .30 * 7 = 2.10 (index no.) As the index no. is in decimal so, we floor it to 2 So, 2 means second value 50P = 4
- 5. RANK METHOD Q; 7,2,9,11,4,8 & 13 P = 40 RANK ITEM 1 2 2 4 3 7 4 8 5 9 6 11 7 13
- 6. RANK METHOD R = P/100 * (N+1) R = 40/100 * (7+1) R = .40 * 8 R = 3.2 As the rank is in decimal, so we solve it further RV + (RV + 1 - RV * FR) 7 + (8 – 7 * 0.2) 7 + 0.2 7.2
- 7. Median 1/2 - 50%50% - 25% 25%25%25% Q1 Q2 Q3 Quartiles 1/4 10%10% Deciles 1/10 10%10%10%10%10%10%10%10% QUARTILE, MEDIAN & DECILE
- 8. THANK YOU!