1.During a two-hour period, the temperature in a city dropped from a high of 57F to a...
Question:
1.During a two-hour period, the temperature in a city dropped from a high of 57°F to a low of −19°F. What was the range of the temperatures during this period? °F
2. On an examination given to 8,400 students, Hal's score of 405 was higher than the scores of 3,752 of the students who took the examination. What is the percentile for Hal's score? (Round your answer to the nearest percentile. See Example 4 in this section.)
Hal's score of 405 places him at the th percentile.
3. A professor grades students on four tests, a term paper, and a final examination. Each test counts as 15% of the course grade. The term paper counts as 20% of the course grade. The final examination counts as 20% of the course grade. Alan has test scores of
98, 76, 88, and 92.
Alan received an 82 on his term paper. His final examination score was 86. Use the weighted mean formula to find Alan's average for the course. (Round your answer to one decimal place.)
Expert Answer:
1 To find the range of temperatures during the twohour period we subtract the low temperature from t... View the full answer
