Answer:
Slope=4/5
Step-by-step explanation:
This is the formula to find the slope of lines:
y2-y1/x2-x1 (look it up to learn more)
9-1/1+9
8/10
4/5
The slope is 4/5
Hope this helps :)
Round 396.6 to 396, because 396/9=44, making a whole number. Hope this helps!!
Given:
μ = $3.26 million, averaged salary
σ = $1.2 million, standard deviation
n = 100, sample size.
Let x = random test value
We want to determine P(x>4).
Calculate z-score.
z = (x - μ)/ (σ/√n) = (4 - 3.26)/(1.2/10) = 6.1667
From standard tables,
P(z<6.1667) = 1
The area under the distribution curve = 1.
Therefore
P(z>6.1667) = 1 - P(z<=6.1667) = 1 - 1 = 0
Answer: The probability is 0.
