Variable Names:
- birth_month: month of the birth
- avg_crawling_age: average age in weeks that this group learned to crawl
- SD: standard deviation of time to crawling for this group
- n: number of infants in that birth month group
- temperature: average monthly temperature six months after birth month
The Data:
birth_month avg_crawling_age SD n temperature
January 29.84 7.08 32 66
February 30.52 6.96 36 73
March 29.70 8.33 23 72
April 31.84 6.21 26 63
May 28.58 8.07 27 52
June 31.44 8.10 29 39
July 33.64 6.91 21 33
August 32.82 7.61 45 30
September 33.83 6.93 38 33
October 33.35 7.29 44 37
November 33.38 7.42 49 48
December 32.32 5.71 44 57