Answer:
First we need to find the mean and standard deviation of the given data.
The mean and standard deviation are given below:




We have:


Therefore, the percentage of values that lies within one standard deviation of the mean is:

The expected percentage of values within one standard deviation of the mean according to normal distribution is 68%.
Therefore, the observed percentage of values within one standard deviation of the mean is much higher than the expected percentage of a normal distribution.
For #2, B is not a function because there are two outputs for 2. In order to be a function there must only be one output for every input.
I believe the answer to #1 is D for the same reason.
Answer:
3200
Step-by-step explanation:
1000 Megabyte = 1 Gigabyte
Answer:
{0, 2, 4}
Step-by-step explanation:
satisfies these criteria: 0 is less than 1, and 0+2+4 = 6.