I dislike this kind of math, pointless in my eyes
The absolute value of B is 1 3/5 because although B is in the negatives, absolute value makes it positive.
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:
true
Step-by-step explanation:
if the point if below or to the left of the origin, it is negative. if it is above or to the right of the origin, it is positive
9*10(9) is equal to 810, and 3*10(-4) is equal to -120. This is 6.75 times larger than -120.
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Hope this helps!
