![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 31.10.2019 01:31, ALEXMASTERS64
For five individuals the blood platelet aggregation was measured before (x1) and after (y1) they performed a certain task. these five pairs of values gave the following results: ¯x1 = 30.2, y¯1 = 39.0, cov(x1, y1) = 88.5. for another six individuals the blood platelet aggregation was also measured before (x2) and after (y2) they performed the same task. these six pairs of values gave the following results: ¯x2 = 52.17, y¯2 = 63.67, cov(x2, y2) = 148.67. find the covariance of the combined 11 pairs.
![answer](/tpl/images/cats/otvet.png)
Answers: 1
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:50, kordejah348
Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p. mc) knowing that it is going to rain tomorrow, and going to bed before 9 p. md) knowing that you have a test in school tomorrow, and studying thw night before
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:00, hello123485
Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i
Answers: 2
Do you know the correct answer?
For five individuals the blood platelet aggregation was measured before (x1) and after (y1) they per...
Questions in other subjects:
![Konu](/tpl/images/cats/mir.png)
World Languages, 27.11.2019 23:31
![Konu](/tpl/images/cats/mkx.png)
Arts, 27.11.2019 23:31
![Konu](/tpl/images/cats/en.png)
English, 27.11.2019 23:31
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 27.11.2019 23:31
![Konu](/tpl/images/cats/en.png)
English, 27.11.2019 23:31
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.11.2019 23:31
![Konu](/tpl/images/cats/istoriya.png)
History, 27.11.2019 23:31
![Konu](/tpl/images/cats/biologiya.png)
Biology, 27.11.2019 23:31