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: you have to do in the first one 8,16,4,2,11,13,14
Step-by-step explanation:
There is more than one answer, but one could be:
1024, 2.
Answer:
4.04
Step-by-step explanation:
2.84 + 1.2 = 4.04
Answer:
tan -1 (8/10)
Step-by-step explanation:
hope it helps :3
