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:
Step-by-step explanation:
(a). 270° clockwise or 90° counterclockwise:
(x, y) --------> ( - y, x )
(b). 270° counterclockwise or 90° clockwise:
(x, y) ---------> ( y, - x )
Answer:
The leverage of an observation is determined by how far the values of the independent variables are from their means.
Answer:
any number equal or greater than 1
Step-by-step explanation:
5 time what is bigger the 4
Answer: $351.81
Step-by-step explanation:
Find 10% of 313.49 by 10 to get $31.35. take that and dived it by 4.5 and add it to the original 10% so you get 6.97 + 31.35 which equals $38.32. Given your wording, you should get $351.81. (38.32+313.35)
