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.
I think the answeeeeer is d the people had little
I'm not sure I follow what you are asking here.
According to jones and colleagues, the framework of mental toughness contains two subcomponents belief and focus.
The time period "intellectual longevity" is used by athletes, coaches, sports psychologists, and sports commentators to refer to an athlete's disposition and ability to deal effectively with demanding situations, stressors, and strain in sports.
In-game, perhaps the maximum defying function of an elite athlete is their degree of intelligence. toughness. intellectual toughness refers to an athlete's capacity to persist in the face of challenges, errors, and failure.
Mental toughness offers you the self-assurance needed to keep pushing ahead no matter the competitive state of affairs. the important thing element of mental durability is the capacity to recognition at the undertaking right in front of you. you spot, that athletes that lack intellectual durability have an out-of-place recognition
Learn more about mental toughness here:brainly.com/question/24516788
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Answer:
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