Answer:
The answer to the question is
Point Estimate = 1.5
Margin of error = 0.3
Step-by-step explanation:
A point estimate as opposed to an interval estimate, presented in the question which consist of a range of values, is a specific point or single value to describe a given set of collected data. An example of a point estimate is the mean of a range of values hence the point estimate is given as
(1.2 + 1.8) ÷ 2 which is equal to 1.5
The margin of error is used to describe the required allowance in terms of statistical points or percentage points by which a given set of result could vary from the actual sample. It represents the expected error between the actual population and the survey result
In this case the margin of error from the mean is
1.5 - 1.2 = 0.3
Margin of error formula is z ×σ/√(n)
where z = z-score
σ = standard deviation
n = number of sampled data
Answer:
(2x^2+7)
Step-by-step explanation:
5x^3 * 2x^2 = 10x^5
5x^3 * 7 = 35x^3
Answer:
AB
Step-by-step explanation:
angle C is 58 because 59+63=122 180-122=58
and drag and arrow to the opposite side of each angle and you have your answer
Answer:
It's possible to play Wii games and use Wii accessories on Wii w
Step-by-step explanation:
Let's go through these, sentence by sentence:
a. <em>Henry is driving at a constant speed.</em>
If the y-axis represents the speed of Henry's car, this portion of the graph should be a straight horizontal line, as his speed doesn't change at all. This already eliminates the first and second options.
<em>He then slows down to pass an accident. After passing it, he goes back to his original speed and continues driving at that speed</em>.
We should see a downward-sloped line segment during the period when he slows down, and then an upward-sloped line segment during the time where he speeds up. Graphically, this would look like a V. Finally, the graph would again become a straight horizontal line as he returned to and maintained his original speed. Graph #4 is the only one which represents this description.
b. <em>Teresa is driving to work. She drives at a constant speed for several miles, then stops to pick up breakfast</em>.
On all of the graphs of this situation, the y-axis represents Teresa's <em>distance to work</em>. We have to be careful here, because the further she drives, <em>the further down the graph goes</em>. The y-coordinate starts at some positive fixed position (the total distance to work) and works its way down to 0.
There's only one graph which represents this scenario - a downwards trend - and that's graph #3.
