Answer:
Its Not C or B, tried em and got em wrong
Step-by-step explanation:
Answer: <em>81</em>
Step-by-step explanation:
<em>3^4</em>
<em>3x3x3x3</em>
<em>3x3=9</em>
<em>9x3=27</em>
<em>27x3=</em><em>81</em>
Answer:
15
Step-by-step explanation:
answeram I righatjfj
Answer:
The standard error of the mean is 4.5.
Step-by-step explanation:
As we don't know the standard deviation of the population, we can estimate the standard error of the mean from the standard deviation of the sample as:

The sample is [30mins, 40 mins, 60 mins, 80 mins, 20 mins, 85 mins]. The size of the sample is n=6.
The mean of the sample is:

The standard deviation of the sample is calculated as:

Then, we can calculate the standard error of the mean as:

Answer:
1) 125
2) 1
3) 27
Step-by-step explanation:
1) 5*5*5=
125
2) whenever there is an exponent of 0, the number is 1
3) 3*3*3=
27