The age (in years) of 10 teachers of a school is as follows:42,31,29,32,54,36,35,28,45 and 25
what is the age of the youngest and the eldest teacher?
calculate the range and the mean age of the teacher.
what will be the new mean age if a new teacher of age32 years is employed
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Answer:
make table first
ages
10-20. 0
20-30. 3
30-40. 4
40-50. 2
50-60. 1
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