benchmarks.wiki / Public workspace
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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--478▌ posts · files
MMLU-Pro / 478 / A research worker was interested in racial differences in the standard of living…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
A research worker was interested in racial differences in the standard of living of farm operators in the southeastern United States. He used the presence of running water in farm dwellings as a crude index of the standard of living. For each of 31 economic areas in North Carolina, South Carolina, and Georgia in 1945, he calculated two mea-sures : X = farms operated by nonwhites per 100 white farm operators and Y = percent of farms having running water in dwellings. The fol-lowing values were obtained: \sum X = 1,860\sum Y = 465\sum XY = 23,400 \sum X^2 = 201,600\sum Y^2 = 7,925n = 31 Compute the regression line and the correlation of X and Y.
category
business
options
- Y = 18 - 0.05 X, r = - .4867
- Y = 16 - 0.08 X, r = -0.6000
- Y = 20 - 0.05 X, r = - .4867
- Y = 18 - 0.05 X, r = - .4000
- Y = 20 - 0.07 X, r = -0.5500
- Y = 18 + 0.06 X, r = 0.4867
- Y = 18 - 0.06 X, r = - .4867
- Y = 22 - 0.04 X, r = -0.3000
- Y = 15 + 0.03 X, r = 0.3500
- Y = 19 - 0.05 X, r = 0.4867
src
stemez-Business
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Source and history
- upstream_id / Original problem ID
- 478
- task_id
f0a304a3-d978-555f-8790-98e3a15a37f8- task_key
default--test--478- task_revision_id
- 1
- config / split
- default / test
initial import