Math Problem Statement
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Topic 7 Homework (Nonadaptive) Question 12 of 16 (1 point)|Question Attempt: 1 of Unlimited
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Question 12 Partially Correct Your answer is incorrect. Expected number of colorblind participants who had an outcome of hit: Your answer is incorrect. Expected number of colorblind participants who had an outcome of false alarm: Your answer is incorrect. The following contingency table gives a summary of the data from 2000 trials of a visual experiment. Each of the trials was classified according to two variables: color vision of the participant ("Colorblind" or "Not colorblind") and trial outcome ("Hit", "Miss", "False alarm", or "Correct rejection"). In the cells of the table are the respective observed frequencies, and three of the cells also have blanks. Fill in these blanks with the frequencies expected if the two variables, color vision of participant and trial outcome, are independent. Round your answers to two or more decimal places.
Send data to Excel Trial outcome Hit Miss False alarm Correct rejection Total Color vision of participant Colorblind 77 639.13 22 23 263.36 70 67.97 192 Not colorblind 630 269 271 638 1808 Total 707 291 294 708 2000
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Math Problem Analysis
Mathematical Concepts
Statistics
Probability
Contingency Tables
Expected Frequency Calculation
Formulas
Expected Frequency E_ij = (Row Total for Row i * Column Total for Column j) / Grand Total
Theorems
Independence of Events in Probability
Suitable Grade Level
College Level (Statistics Course)
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