Answer:
4 > x/2.1
Step-by-step explanation:
4 cannot be less than anything, so the inequality sign has to be "eating" the 4.
4 > ?
The quotient of a number x and 2.1 is simply saying division
4 > x/2.1
The slope intercept form is
y = Mx + b
x and y are the coordinates, and m is the slope. If you don’t have b, you can plug in the other numbers you do have.
EXAMPLE:
A line has a slope of -3 and a coordinate of (1, 6). What is the y-intercept (b)?
y = Mx + b
6 = -3(1) + b
6 = -3 + b
9 = b
The confidence interval is given by the formula:
m +/- z·(σ/√n)
First, compute the mean:
m = (<span>15.8 + 15.6 + 15.1 + 15.2 + 15.1 + 15.5 + 15.9 + 15.5) / 8
= 15.463
Then, compute the standard deviation:
</span>σ = √[∑(v - m)²/n]
= 0.287
The z-score for a 95% confidence interval is z = 1.96.
Now you can calculate:
m + z·(σ/√n) = 15.463 + 1.96·(0.287/√8)
= 15.463 + 0.199
= 15.662
m - z·(σ/√n) = 15.463 - 1.96·(0.287/√8)
= 15.463 - 0.199
= 15.264
Therefore the confidence interval is (15.264, <span>15.662) and the correct answer is E) none of the above.</span>
Answer:
×=3
Step-by-step explanation:
3× + × + 8 = 20
4×= 12
divide 4 with 12 and it will be 3
