Answer: 6.125 hour
Explanation:
Train 1 ===> 1 hour = 90 miles
Train 2 ===> 1 hour = 120 miles
1 hour = 90 + 120 = 210 miles apart
210 miles = 1 hour
735 miles = 735 ÷ 210 = 6.125 hours
Answer:
Inferential statistics
Step-by-step explanation:
When we conduct a poll, we aim to make a generalization about the population or units under study. The recent poll of 1971 home owners in West Virginia showed that the average (mean) price of house <em>in the U.S</em><em>.</em> is $319,000.
Recall that this poll was conducted only in West Virginia but the result or finding of the poll is being generalized over the U.S. as a whole. Hence, we are using the sample (fraction) to determine the population (whole) of home owners in the U.S. This is what we call <em>statistical inference or inferential statistics.</em>
Doubling d is two times d: 2d
Divide 9 by the result (2d): 9/2d
Answer: 9/2d (with 2d in the Denominator)
