Answer:
As the moon orbits Earth, it cycles through eight distinct phases. The four primary phases occur about a week apart.
Explanation:
look back at the phases.
Answer:
Asia, Australia, North and South America
Explanation:
Answer:
The moon's surface has been pelted by asteroids, comets and meteorites which have caused craters.
Explanation:
I think the correct answer would be Grow Cover Crops
I hope this helps !
Solution :
a). Let x denotes ACT scores.
ACT scores = 
Mean, 

Sample variance, 


= 11
b). To test whether or not variance of ACT scores of population (say
) of the UTC students is significantly more than 8.
Consider the hypothesis :
vs 
It is a right tailed test and α = 0.05
We have

So test statics is


= 8.25
Since our
and it falls in a acceptation region, hence we fail to reject
and conclude that variance is not greater than 8 significantly.