Answer:
Mean = 30516.67
Standard deviation, s = 3996.55
P(x < 27000) = 0.0011518
Step-by-step explanation:
Given the data:
28500 35500 32600 36000 34000 25700 27500 29000 24600 31500 34500 26800
Mean, xbar = Σx / n = 366200 /12 = 30516.67
Standard deviation, s = [√Σ(x - xbar) / n-1]
Using calculator, s = 3996.55
The ZSCORE = (x - mean) / s/√n
Zscore = (27000 - 30516.67) / (3996.55/√12)
Zscore = - 3516.67 / 1153.7046
Zscore = - 3.048
P(x < 27000) = P(Z < - 3.049) = 0.0011518
Answer:
3.22
Step-by-step explanation:
You would multiply it normally than move one place behind the decimal.
Answer:
<h2>- 2</h2>
Step-by-step explanation:
The slope-intercept form of an equation of a line:
m - slope
b - y-intercept
We have
Therefore the slope is equal to -2.
The best answer to this question is quadratic. The model that can be seen in a scatterplot wherein the dots line up on a graph in a curvy manner would be the quadratic model.
Additional info: If the dots are forming a straight lne, it's linear. If it shoots up, then it's an exponential one.
