Answer:
97
Step-by-step explanation:
5 * 85 - 4* 82 = 97
The correct answer is 3/13. Divided both by 5.
15/65
3/13
Answer:
A
Step-by-step explanation:
An event that is not affected by other events. Example: tossing a coin. Heads or tails is not affected by previous tosses.
The proportion of buses traveling more than 900 miles would be 0.0485; multiply this by the total number of buses and you will have your answer.
We find the z-score associated with 900 miles:
z = (X - μ)/σ = (900-830.11)/42.19 = 1.66
Using a z-table (http://www.z-table.com) we see that the area under the curve to the left of this, less than this, is 0.9515. This means that the area under the curve to the right of this, greater than this, would be 1-0.9515 = 0.0485.
