The equation of the line is A
9514 1404 393
Answer:
D, 60 miles
Step-by-step explanation:
Distance is indicated by the vertical scale. The section that represents the most distance will be the section that has the greatest vertical difference between its start and end points. Section D starts at 60 and ends at 0 miles, so covers a distance of 60 miles. The greatest distance covered by any other section is 30 miles.
The person traveled the farthest during section D. They traveled 60 miles.
Answer:
375
Step-by-step explanation:
Empirical rule dictates that, in a Bell-shaped distribution, 95% of data lies within 2 standard deviation on either side of the mean.
Therefore,
Lower value = mean-2SD = 70-2*8 = 70-16 = 54
Upper value = mean+2SD = 70+2*8 = 70+16 = 86
Then, 95% of the data lies between $54 and 84. These values can also be taken as the true mean of the population considering 95% confidence when sample mean has been calculated. In this regard, 2SD can be regarded as the margin error.
We add up all those numbers (excluding 30) and divide by the number of numbers (9). This results in 78.8 (round up to 79).
79-74 = 5. So the mean has increased by 5 points. (C)
