Khan Academy
7 713 vidéos, +5 400 000 abonnés

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Conditions for confidence intervals worked examples4:542 954
Interpreting confidence intervals example5:003 105
Conditions for valid confidence intervals6:441 848
Confidence intervals and margin of error11:452 941
Confidence interval simulation4:253 600
Scarcity4:333 770
Production Possibilities Curve as a model of a country's economy | Micro Economics | Khan Academy6:49922
Difference of functions | Functions and their graphs | Algebra II | Khan Academy2:163 901
Proof of the derivative of sin(x) | Derivatives introduction | AP Calculus AB | Khan Academy5:52937
Endocrine system introduction4:404 726
Human fertilization and early development7:595 617
Unites States v Lopez4:594 203
McCulloch vs Maryland7:492 533
Federal and State powers and the 10th and 14th Amendments4:412 579
The 10th and 14th Amendments in relation to federal and state powers4:401 879
Enumerated and implied powers of the US Federal Government6:302 143
Federalism in the United States6:403 899
Multiple points of influence due to separation of powers and checks and balances4:282 533
Impeachment8:347 427
Separation of Powers and Checks and Balances3:593 359
Impact of Constitutional compromise on us today8:262 596
Introduction to cilia, flagella and pseudopodia4:253 255
Organelles in eukaryotic cells9:383 129
Introduction to the cell5:528 171
Introduction to passive and active transport8:602 303
Introduction to pH5:224 010
Introduction to vitamins and minerals6:115 202
Probability of sample proportions example7:351 774
Normal conditions for sampling distributions of sample proportions6:172 171
Introduction to sampling distributions7:181 876
Sampling distribution of sample proportion part 19:571 611
Sampling distribution of sample proportion part 24:341 193
Biased and unbiased estimators from sampling distributions examples5:56316
Give to Khan Academy today!1:5464 866
Introduction to sampling distributions9:112 986
10% Rule of assuming "independence" between trials6:43971
Identifying individuals, variables and categorical variables in a data set2:404 022
Introduction to vertex form of a quadratic6:137 272
Democratic ideals in the preamble of the US Constitution3:12242
Federalist Papers #10 (part 1)9:572 015
Federalist Papers #10 (part 2)6:601 100
Interpreting a quadratic in factored form5:355 250
Anti Federalists and Brutus I9:302 363
Introduction to Democracy and its broad variations9:154 309
The Articles of Confederation and Shays' Rebellion8:574 479
Democratic ideals of US government9:403 896
Democratic ideals in the Declaration of Independence7:532 709
Natural rights, social contract, democracy, republicanism and limited government7:553 210
Thomas Hobbes and Social Contract8:007 252
Constructing linear and exponential functions from graph | Algebra II | Khan Academy7:255 174
Value added approach to calculating GDP | Macroeconomics | Khan Academy5:16886
Equilibrium price and quantity from changes in both supply and demand6:132 926
Changes in equilibrium price and quantity when supply and demand change | Khan Academy6:161 500
Change in supply versus change in quantity supplied | Microeconomics | Khan Academy6:151 411
Change in demand versus change in quantity demanded | Microeconomics | Khan Academy8:271 654
Input approach to determining comparative advantage | Macroeconomics | Khan Academy8:52976
Production Possibilities Curve PPC as a model of a nation's output | Macroeconomics | Khan Academy7:551 126
Terms of Trade and the Gains from Trade | Macroeconomics | Khan Academy9:561 434
Identifying centripetal force vectors for cars and satellites9:401 917
Identifying centripetal force for ball on string5:501 481
Recognizing force vectors for pendulum2:591 465
Introduction to centripetal force6:143 275
Centripetal acceleration from linear and angular velocity4:57971
Deriving formula for centripetal acceleration from angular velocity5:302 401
Change in period and frequency from change in angular velocity examples6:481 008
Connecting angular velocity to period and frequency6:451 513
Visually dividing unit fraction by a whole number3:002 692
Example diving a unit fraction by a whole number2:256 339
Visually dividing whole numbers by unit fractions2:282 729
Example dividing a whole by a unit fraction1:524 915
Visually dividing a fraction by a whole number3:535 195
Adding tenths to hundredths3:704 146
Word problem subtracting fractions with like denominators3:902 704
Whole number divided by a fraction example3:506 647
Dividing mixed numbers example3:338 247
Opportunity cost and comparative advantage | Macroeconomics | Khan Academy9:554 106
PPCs for increasing, decreasing and constant opportunity cost | Macroeconomics | Khan Academy5:262 820
Utility maximization example4:324 598
Comparing proportionality constants5:339 216
Interpret proportionality constants3:205 437
Percent word problem examples7:5914 398
Proportional relationships example4:307 248
Tax, discount and tip examples5:4814 015
Exploring scale copies1:523 409
Proportionality constant from table1:457 289
Constant of proportionality from equation2:239 365
Identifying constant of proportionality graphically4:3710 220
Identifying values in scale drawings3:494 496
Scale factors and area6:404 047
Identifying scale factors2:555 217
Identifying scaled copies4:402 846
Corresponding points and sides of scaled shapes2:552 844
Fraction decimal and percent from visual model3:339 779
Rate problems4:308 569
Relative position1:503 627
Ratios with tape diagrams4:3014 174
Ratios and measurement6:5711 719
Ratios and double number lines5:5317 952
Ratios on coordinate plane5:1213 148
Another separable differential equation example4:271 888

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