• 3147 views

    Lec 5 - Statistics: Standard Deviation

    Statistics: Standard Deviation Review of what we've learned. Introduction to the standard deviation.

    Video is embedded from external source so embedding is not available.

    Video is embedded from external source so download is not available.

    Channels: Mathematics

    Tags: Statistics: Standard Deviation

    Uploaded by: ( Send Message ) on 10-09-2012.

    Duration: 13m 7s

    Here is the next lecture for this course

    Watch NEXT
    LECTURE
    2748 views     The Standard Model Explains Force

    Lec 6 - Statistics: Alternate Variance Formulas

     12:17
    Lecture List | Course Details | Contents | Related

    No content is added to this lecture.

    Go to course:

    This video is a part of a lecture series from of khan

    Lecture list for this course

    Lec 1 - Statistics: The Average

    Lec 2 - Statistics: Sample vs. Population Mean

    Lec 3 - Statistics: Variance of a Population

    Lec 4 - Statistics: Sample Variance

    Lec 6 - Statistics: Alternate Variance Formulas

    Lec 7 - Introduction to Random Variables

    Lec 8 - Probability Density Functions

    Lec 9 - Binomial Distribution 1

    Lec 10 - Binomial Distribution 2

    Lec 11 - Binomial Distribution 3

    Lec 12 - Binomial Distribution 4

    Lec 13 - Expected Value: E(X)

    Lec 114 - Expected Value of Binomial Distribution

    Lec 15 - Poisson Process 1

    Lec 16 - Poisson Process 2

    Lec 17 - Law of Large Numbers

    Lec 18 - Normal Distribution Excel Exercise

    Lec 19 - Introduction to the Normal Distribution

    Lec 20 - ck12.org Normal Distribution Problems: Qualitative sense of normal distributions

    Lec 21 - ck12.org Normal Distribution Problems: z-score

    Lec 22 - ck12.org Normal Distribution Problems: Empirical Rule

    Lec 23 - ck12.org Exercise: Standard Normal Distribution and the Empirical Rule

    LKec 24 - ck12.org: More Empirical Rule and Z-score practice

    Lec 25 - Central Limit Theorem

    Lec 26 - Sampling Distribution of the Sample Mean

    Lec 27 - Sampling Distribution of the Sample Mean 2

    Lec 28 - Standard Error of the Mean

    Lec 29 - Sampling Distribution Example Problem

    Lec 30 - Confidence Interval 1

    Lec 31 - Mean and Variance of Bernoulli Distribution Example

    Lec 32 - Bernoulli Distribution Mean and Variance Formulas

    Lec 33 - Margin of Error 1

    Lec 34 - Margin of Error 2

    Lec 35 - Confidence Interval Example

    Lec 36 - Small Sample Size Confidence Intervals

    Lec 37 - Hypothesis Testing and P-values

    Lec 38 - One-Tailed and Two-Tailed Tests

    Lec 39 - Z-statistics vs. T-statistics

    Lec 40 - Type 1 Errors

    Lec 41 - Small Sample Hypothesis Test

    Lec 42 - T-Statistic Confidence Interval

    Lec 43 - Large Sample Proportion Hypothesis Testing

    Lec 44 - Variance of Differences of Random Variables

    Lec 45 - Difference of Sample Means Distribution

    Lec 46 - Confidence Interval of Difference of Means

    Lec 47 - Clarification of Confidence Interval of Difference of Means

    Lec 48 - Hypothesis Test for Difference of Means

    Lec 49 - Comparing Population Proportions 1

    Lec 50 - Comparing Population Proportions 2

    Lec 51 - Hypothesis Test Comparing Population Proportions

    Lec 52 - Squared Error of Regression Line

    Lec 53 - Proof (Part 1) Minimizing Squared Error to Regression Line

    Lec 54 - Proof (Part 3) Minimizing Squared Error to Regression Line

    Lec 55 - Proof (Part 4) Minimizing Squared Error to Regression Line

    Lec 56 - Regression Line Example

    Lec 57 - Proof Part 2 Minimizing Squared Error to Line

    Lec 58 - R-Squared or Coefficient of Determination

    Lec 59 - Second Regression Example

    Lec 60 - Calculating R-Squared

    Lec 61 - Covariance and the Regression Line

    Lec 62 - Chi-Square Distribution Introduction

    Lec 63 - Pearson's Chi Square Test (Goodness of Fit)

    Lec 64 -Contingency Table Chi-Square Test

    Lec 65 -ANOVA 1 - Calculating SST (Total Sum of Squares)

    Lec 66 -ANOVA 2 - Calculating SSW and SSB (Total Sum of Squares Within and Between).avi

    Lec 67 - ANOVA 3 -Hypothesis Test with F-Statistic

    Lec 68 - Correlation and Causality