The value that is 2 standard deviations from the mean is; 130
<h3>What is Empirical Rule?</h3>
For this question, we will use Z-score and as such whether the value is below or above mean (shown by positive or negative sign) and by how much (times the standard deviation).
Thus;
Calculated value = μ + zσ
where;
μ is mean
σ is standard deviation
Hence, the value that would be +2 standard deviations from the mean is;
Calculated value = 100 + 2(15)
Calculated value = 130
Read more about Empirical Rule at; brainly.com/question/10093236
Answer:
4 3/8
Step-by-step explanation:
1 1/4 * 3 1/2
Answer:
-39
Step-by-step explanation:
Please give me brainliest.
Answer:
18 , 20 , 22 and 24.
Step-by-step explanation:
Let the numbers be n , n + 2, n + 4 and n + 6.
So we have the following equation:
n + 3(n + 6) = 48 + n + 2 + n + 4
n + 3n + 18 = 48 + 2n + 6
4n + 18 = 2n + 54
2n = 36
n = 18
So the numbers are 18 , 20 , 22 and 24.
based on the options given, it looks like -2x+5y would be correct although i am not certain