67 people were asked about the number of years they had been in college. The responses are in the table below. Find the expected number of years of college attended
# of years in college Frequency
0 13
1 11
2 11
3 13
4 9
5 10
The expected number of years of college attended is?

Question

67 people were asked about the number of years they had been in college. The responses are in the table below. Find the expected number of years of college attended
# of years in college         Frequency
        0                                        13
        1                                        11
        2                                        11
        3                                        13
        4                                         9
        5                                        10
The expected number of years of college attended is?

anonymous · Answer

0*13+1*11+2*11+3*13+4*9+5*10
=158
158/67 is about 2.36