Answer:
Solution:
4+5+3+7+2+3+4+1 = 29
1.) 1/29 ( 22 × 4 + 27 × 5 + 32 × 3 + 37 × 7 + 42 × 2 + 47 × 3 + 52 + 4 + 57 × 1 )
= 36. 83
2.) 29 × 50% = 14.5
: The median age is between 35-37
: 34.5 + 14.5 - ( 4+5+3) / 7 × 5
= 36.29
3.) The number of teachers between 35-39 is the highest
: it's most likely to get a teacher between 35-39.
