The average starting salary for graduates at a university is $25,000 with a standard deviation of $2000. A histogram of the data shows the shape to be very erratic so Chebyshev’s Theorem should be used. How many of the graduates would have a starting salary between 21,000 and 29,000?
A: at least 95%
B: at least 68%
C: at least 75%
D: at least 89%
A: at least 95%
B: at least 68%
C: at least 75%
D: at least 89%
举一反三
- The average starting salary for graduates at a university is $25,000 with a standard deviation of $2000. A histogram of the data shows the shape to be very erratic so Chebyshev’s Theorem should be used. How many of the graduates would have a starting salary between 21,000 and 29,000?
- How many years of professional experience should the candidates have At least ______.
- Considering your salary， you should be able to ________ at least twenty dollars a week.
- Before starting an engine by air, the engine must（） A: be turned by a turning gear for at least one minute B: be turned by a turning gear for at least two minutes C: be turned at least one complete turn D: be turned at least two complete tur
- __________ a teacher in a university, it is necessary to have at least a master’s degree.