Answer:
It decreased
Step-by-step explanation:
It decreased. Assuming that the temperature is 100 and it is now reduced by 60% then the temperature will be at 40 and if it increased by 80% then the final temp is 72. So it is 48% of the original temp.
Answer:
B. One of the populations is normally distributed.
Step-by-step explanation:
To test a claim about two population standard deviation or variance, it is imperative that the data meets certain requirements which include :
Randomness : Data must not be biased as such it must be drawn as a random sample from a larger group.
The data must be independent. That is not related to one another, the outcome of one should not rely on the outcome or value of another.
Both groups must be drawn From a population which is normally distributed.
One group being normally distributed by stribuyed while the other isn't a requirement for hypothesis testing in this scenario.
Answer:
A. 13
Step-by-step explanation:
Pythagorean Theorem: a^2+ b^2=c^2
a = 12
b = 5
c = ?
12^2+5^2=c^2
144 + 25 = c^2
169 = c^2
c = sqrt(169)
c = 13
Answer:
B. (b x d) - c
Step-by-step explanation:
i. -(a x d) + b
= -(6 x 
) + 8
= -3 + 8
= 5
ii. (b x d) - c
(8 x ) - 4
= 4 - 4
= 0
iii. 2(b x f) + a
= 2(8 x 
) + 6
= 4 + 6
= 10
iv. (a x e) - c
= (6 x 
) - 4
= 2 - 4
= -2
Thus, the expression which is equivalent to 0 is that of option B.
