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.
Explanation:
यहां हर वो शख्स गम के आंसू रोया है
कोई खुद में तो कोई खुदा में खोया है
कैसे जगा दू उन्हें उनके अधूरे खवाबो से
न जाने कौन आंखो मै आंसू लेके सोया है
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<em>Answer:</em>
<em>foot-in-the-door</em>
<em>Explanation:</em>
<em>Foot-in-the-door technique:</em><em> In psychology, the foot-in-the-door technique is defined as a compliance tactic through which an individual tries to agree with the other person for a larger request by confronting him or her for a smaller request. It is also denoted as FITD. </em>
<em>Example: </em><em>A boy asks her to play for an hour after studying, later on, the next day he asked to play with a friend for an entire day.</em>
<em>As per the question, the given statement represents the foot-in-the-door technique.</em>
The correct term in A. Mucrakers. The term muckraker was used in the Progressive Era to characterize reform-minded American journalists who wrote largely for all popular magazines. The modern term is investigative journalism, and investigative journalists today are often informally called "muckrakers." Hope this helps and, if you get more than one answer and see it fit to do so, please mark me Brainlest Answer! Thanks!
