The mean price goes between $ 41.16 and $ 42.84, so a value of $ 48 is unusually high.
Since the average price of an item is $ 42 with a standard deviation of $ 3, to find a 98% confidence interval about the mean, and determine if a value of X = 48 is unusually high or if it is normal, the following calculations should be done:
- (((42 - 3) + (42 + 3)) / 2) x 0.98 = X
- ((39 + 45) / 2) x 0.98 = X
- 42 x 0.98 = X
- 41.16 = X
- (((42 - 3) + (42 + 3)) / 2) x 1.02 = X
- ((39 + 45) / 2) x 1.02 = X
- 42 x 1.02 = X
- 42.84 = X
Therefore, as the mean price goes between $ 41.16 and $ 42.84, a value of $ 48 is unusually high.
Learn more about maths in brainly.com/question/25908442
Answer:
26.6 mi^2
Step-by-step explanation:
Answer:
slope = 2, vertical intercept = 10
Step-by-step explanation:
The intercept, also called the y-intercept, is where the line crosses the y-axis
The vertical line (y-int) is crossed at 10, so vertical intercept = 10
Slope equals rise over run:
The line goes up 10 and moves right 5
10/5 = 2
This line has a positive 2 slope
I am pretty sure the answer is H
