Help me pls
...
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
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
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:40
Let x = a + bi and y = c + di and z = f + gi. which statements are true?
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/en.png)
English, 25.01.2020 20:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 25.01.2020 20:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 25.01.2020 20:31
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 25.01.2020 20:31
![question](/tpl/images/cats/mat.png)
Mathematics, 25.01.2020 20:31
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 25.01.2020 20:31