Answer:
1. 2025 2. 1728
Step-by-step explanation:
1. To find the area, we have to perform the operation LxWxH. 9 x 15 x 15= 2025.
2. To find the area in these problems, we have to multiply all the verticies. So, 6 x 6 x 4x 2 x 3 x 2= 1728.
Answer: d. if we do not know the population standard deviation and must use the sample standard deviation.
Step-by-step explanation:
We use t-distribution is quite similar to distribution of z-score .
The interpretation of t-scores and z-scores are same.
T- distribution is used when the data is not accurately normal and when the population standard deviation is unknown.
In the absence of population standard deviation , we use the standard deviation of the sample.
So , We use a t distribution for inference about a population mean instead of the standard Normal distribution if we do not know the population standard deviation and must use the sample standard deviation.
Hence, the correct option is : d. if we do not know the population standard deviation and must use the sample standard deviation.
Answer:
The second one (4+3x = 9)
Step-by-step explanation:
From the working we can already tell that the second one is the odd one out without even doing the 4th one
Answer:
12
Step-by-step explanation:
if you look of 15% of 80 it will give the answer
A. They are symmetric about y=x
