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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.
Answers: 3
Mathematics, 22.06.2019 04:30
7x^2-9x+5=0 find the discriminant and number of real solutions
Answers: 1
In 972.6580 which didgit is in the hundreds place...
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