Answer:
1. Co-variance= -1.2
2. correlation coefficient= -0.4404
3. There is weak negative relationship between x and y.
Explanation:
1.
Co-variance= Cov(x,y)= sum[(x-xbar)(y-ybar)]/n
xbar=sumx/n=32/5=6.4
ybar=sumy/n=35/5=7
x 7 8 5 3 9
x-xbar 0.6 1.6 -1.4 -3.4 2.6
y 7 5 9 7 7
y-ybar 0 -2 2 0 0
(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0
Cov(x,y)= sum[(x-xbar)(y-ybar)]/n=-6/5=-1.2
Cov(x,y)=-1.2
2.
correlation coefficient=r
x 7 8 5 3 9
x-xbar 0.6 1.6 -1.4 -3.4 2.6
y 7 5 9 7 7
y-ybar 0 -2 2 0 0
(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0
(x-xbar)² 0.36 2.56 1.96 11.56 6.76
(y-ybar)² 0 4 4 0 0
r=-0.4404
3. Since the value of correlation coefficient is negative and less than 0.5 , so, we can say that there is weak negative relationship between x and y.
Answer:
We cant see the map. but from the words on this question i say it could be the 2nd answer choice maybe
Answer:
Religion was important to the ancient Greeks because they believed that it would make their lives better while they were living. They also believed the gods would take care of them when they died.
Explanation:
Please give me brainliest!
Answer:
United States v. Windsor legalized same-sex marriage in the United States.
Explanation:
Although the United States v. Windsor case in 2013, represents a landmark on civil rights, that set the focus on civil rights for married same-sex couples, and set a precedent for the later legalization of these unions, it did not legalize same-sex marriage in the United States.
It was the Obergefell v. Hodges case, in 2015, in which the Supreme Court ruled that the right to marry was a fundamental right that should be guaranteed for same sex couples, requiring all fifty states to perform and recognize same-sex marriage.
Answer:
Explanation:
the second one about silt and soil
