Horseshoe crabs on a beach can be overturned by approaching waves. These “stranded” crabs may right themselves by turning over.
During a period of many days on an Atlantic Ocean beach, investigators categorized a random sample of crabs as either stranded or not stranded and additionally noted their age category. The researchers wanted to investigate whether there is convincing evidence of an association between becoming stranded and age. Data from their study are shown in the following table.
2 answers:
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Answer:
probability of left handed female is
Step-by-step explanation:
you have 140 employees, and we know 65 employees are male. to work out how many female employees we minus 65 from 140 to get 75 female employees
we are told 31 females are left hand, to work out how many female are right handed we do 75-31 which equals 44 right handed females
if 90 of the total employees are right handed, and 44 females are right handed, in order to find how many males are right handed we do 90-44 which gives us 46 right handed males
to workout how many males are left handed, since we have 65 makes and 46 are right handed, just go 65-46 which gives us 19 left handed males
in order to find the probability of choosing a left handed female out if 140 employees, since we know there are only 31 left handed females out of 140 employees we just go
