In a recent issue of the IEEE Spectrum, 87 engineering conferences were announced. Here is a table indicating how many conferences were scheduled to last various numbers of days: # of days 1 2 3 4 5 6 7 8 9
# of conferences 7 15 11 10 8 4 18 4 10

Fill in the five values defining the box-and-whisker plot below.
ABCDE

A=
1
B=
2
C=
5
D=
7
E=
9

The 65th percentile is
.

The 10th percentile is
.

The middle 50% of the conferences last from
to
days.

The sample mean of the conference lengths is
.

The mode of the conference lengths is
.