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: Jaime is using the DIRECT OBSERVATION method of audience analysis.
Explanation: The direct observation method of audience analysis can be defined as a method in which an individual observes subjects in their environment without interfering or altering that environment. It involves collection of information with our senses.
Jaime watching his audience is using the sense of sight to collect information.
The way the setting affected what Lucia thinks of the man who visited Papa is that B. The secretive location causes her to suspect that he is the reason for Papá’s mood.
<h3>How did the setting influence Lucia?</h3>
When papa came back into the house, he had a somber mood which frightened Lucia and made her think that Papa was in some kind of trouble. She suspected that the short man who was wearing a hat might be behind the mood of papa.
This thought of hers came about as a result of the setting where papa met the short man wearing the hat. The fact that it was a secretive location of the shadows in the front porch is why Lucia suspected that the man was suspicious enough to be behind papa's mood.
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