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In how many college institutions are the average age of professors more than 15 years older than that of associate professors?


图中7个点里面,每两个相比,横坐标大的那个,纵坐标也大的概率是多少?

Give your answer as a fraction.


If a pair of different cities is chosen at random from the seven cities, which of the following is closest to the probability that in the pair chosen, the city with the higher maximum temperature is also the city with the lower minimal temperature?


Note: The highest and lowest temperature measurements on a particular day are called the daily high and low temperatures of that day.
Approximately what was the median daily high temperature, in degrees Fahrenheit, for the last ten days in June?
On June 12, the daily low temperature occurred at 5:00 in the morning and the daily high temperature occurred at 4:00 in the afternoon. Which of the following is closest to the average rate of temperature increase, in degrees Fahrenheit per hour, for this time period?
If the daily low temperatures for June 1997 are ordered from least to greatest, which of the following is closest to the $$90^{th}$$ percentile of the daily low temperatures, in degrees Fahrenheit?
Each of the 15 customers who arrived at a customer service desk between 9 AM and 10 AM was served in order of arrival by one of the two customer service representatives. Each representative served one customer at a time and finished with that customer before serving any other customers. The graph shows the waiting and service times, recorded to the nearest minute, for customers numbered 1 to 15.
Of customers 4, 6, 8, 9 and 10, which one was served by the customer service representative who served customer 1?
According to the recorded times, which customer had the greatest ratio of waiting time to service time?
What was the range of the recorded service times, in minutes, for the 15 customers?
For which of the age-groups is the ratio of the number of full professors to the number of associate professors the greatest?
If 10 percent of all the faculty members under 40 at University X are in the fine arts department, approximately what percent of the faculty members in the fine arts department are under 40?
How many faculty members at University X are either associate professors or at least 60 years old or both?
For the employees in the customer service job category in 2000, the average billing rate was $18.50 per hour. Which of the following is the best estimate of the total amount billed by employees in the customer service job category in 2000?
Which of the following is closest to the ratio of the number of hours billed by employees in 1999 to the number of hours billed by employees in 1996?
If the number of hours billed by employees in the customer service job category was the same in 1999 as it was in 2000, which of the following is closest to the percent of the total number of hours billed by employees in 1999 that was billed by employees in the customer service category in 1999?
x=c+4, y=4x+c, while the average of x and y is 17.

Quantity A

x

Quantity B

3

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