I need help asap doing my math
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Mathematics, 21.06.2019 21:40
Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.
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Mathematics, 22.06.2019 02:00
The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220
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Mathematics, 22.06.2019 02:00
90.0% complete a b c d e confirm last week, your delivery runs took 7 hours 12 minutes on monday, 6 hours 46 minutes on wednesday, and 6 hours 53 minutes on friday. what was your average time for a delivery run?
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Mathematics, 22.06.2019 04:00
Bill and felicia each bake cookies for a party. bill bakes 3 times as many cookies as felicia. felicia bakes 24 fewer cookies than bill. bill bakes b cookies and felicia bakes f cookies. what equation can represent this word problem
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Mathematics, 26.06.2019 01:00
Mathematics, 26.06.2019 01:00
Health, 26.06.2019 01:00
Social Studies, 26.06.2019 01:00
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History, 26.06.2019 01:00
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History, 26.06.2019 01:00
History, 26.06.2019 01:00
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English, 26.06.2019 01:00
Mathematics, 26.06.2019 01:00