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Drawing a normal distribution bell curve on a chalkboard.

Stock Photo:
Image ID: 3264372
Copyright:
Small
500x334 6.9"x4.6" (72dpi) 95 KB
Med
1000x667 3.3"x2.2" (300dpi) 391 KB
Large
3250x2167 10.8"x7.2" (300dpi) 2.5 MB
Super
6500x4334 21.7"x14.4" (300dpi) approx.11.3 MB
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