Answer:
3) x-axis: 1 unit
y-axis: 10 units
4) quadrant II
coordinates: (-2, 4)
7) Quadrants I and IV; time is always positive , but temperature can be positive and negative
8) W = (-0.75, -1)
Step-by-step explanation:
3) x-axis: 1 unit
y-axis: 10 units
4) quadrant II
coordinates: (-2, 4)
7) Quadrants I and IV; time is always positive , but temperature can be positive and negative
8) W = (-0.75, -1)
Answer:
There's a 39% chance.
Step-by-step explanation:
Answer:
(a) The probability that a single randomly selected value lies between 158.6 and 159.2 is 0.004.
(b) The probability that a sample mean is between 158.6 and 159.2 is 0.0411.
Step-by-step explanation:
Let the random variable <em>X</em> follow a Normal distribution with parameters <em>μ</em> = 155.4 and <em>σ</em> = 49.5.
(a)
Compute the probability that a single randomly selected value lies between 158.6 and 159.2 as follows:

*Use a standard normal table.
Thus, the probability that a single randomly selected value lies between 158.6 and 159.2 is 0.004.
(b)
A sample of <em>n</em> = 246 is selected.
Compute the probability that a sample mean is between 158.6 and 159.2 as follows:

*Use a standard normal table.
Thus, the probability that a sample mean is between 158.6 and 159.2 is 0.0411.
Answer:
x=2, y=1
x=-2, y = -1
Step-by-step explanation:
x - 2y = 0
x = 2y
x² - y² = 3
(2y)² - y² = 3
3y² = 3
y² = 1
y = 1 or y = - 1
x = 2 or x = -2
Answer:
3/5
Step-by-step explanation: