Answer:
B
Explanation:
the founding documents for the United States relied on a lot of enlightenment ideas
A.<span>This case allowed for a broad interpretation of the powers of the federal government.</span>
Answer: to be a community of learners in a classroom is to be a team or a group that works together to build knowledge and even friendship. the way that my classroom feels like a community of learners when i can ask a fellow classmate for a pencil or when i ask a fellow classmate who might have heard the teacher more to repeat what was just said. or when i can do something like this for my classmates. what might help to make it feel like a community of learners is having sticks drawn. this may be an idea for a younger grade but sometimes when we raise our hands not everybody gets a chance to answer and some people arent paying attention. if we draw sticks with names on it then no one has to feel left out and the teacher can insure that more students are paying attention
Explanation:
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.
