Answer:
52
Step-by-step explanation:
Given that :
Mean (m) = 78
Standard deviation (s) = 13
Score that is 2 standard deviations below the mean
Using the relation :
Zscore = (x - m) / s
2 standard deviations below the mean means a Zscore of - 2
Hence,
-2 = (x - 78) / 13
Cross multiply
-2 * 13 = x - 78
-26 = x - 78
x = - 26 + 78
x = 52
Score which is 2 standard deviations below the mean is 52
Answer: True
Step-by-step explanation:
Prism volume = lwh
Pyramid Volume = lwh/3
2.3= 2.03 so there for it is equal
I wanna say 10 or ether -10 since if it was subtracted from 2 then it would equal -8
