Answer:
x = -50
Step-by-step explanation:
2x+75=75-2x | Given
2x = -150 - 2x | Subtract 75 from both sides
4x = -150 | Add 2x to both sides
x = -50
Answer:
Step-by-step explanation:
from the question,
the mean 14
the standard deviation is 3
and sample size is 10.
since the n which is the sample size is 10, then the distribution is mound shaped.
why?
this is due to the fact that the random variable from which we took the sample is mound shaped.
The sampling distribution of the mean is normally distributed although the question says the random variable is not normally distributed. so the shape is bell shaped and normally distributed.
the standard deviation of the mean is
3/√10
= 0.948
3x4= 12+2= 14 (the dot means multiplication) and i dont know further srry :(
Answer:1380
Step-by-step explanation: 12x115
