1
Name: Raymond Milek
Student ID: 0483682
Thomas Edison State College
Applied Liberal Arts Mathematics (MAT-105)
Section no.: 13.5-13.6; 8.1-8.2, 8.4; 9.3-9.4
Semester and year: October, 2011 Semester
Written Assignment 5
Section 13.5
12.
Determine the mean, median, mode, and midrange of the set of data. Round your answer
to the nearest tenth.
10, 8, 11, 11, 11, 13, 15
10+8+11+11+11+13+15= 69/7= 9.85= 9.9
8+15= 23/2=
Answer:
mean= 9.85 = 9.9
median= 11
mode= 11
midrange= 11.5
22.
Daily Commission
The amount of money Steve Kilner collected in sales commission in
each of seven days is $48, $67, $51, $25, $102, $61, $80. Determine the mean, median,
mode, and midrange.
$48, $67, $51, $25, $102, $61, $80=
434/7= 62
25+102= 127/2= 63.5
Answer:
mean= $62
median= $61
mode= no mode
midrange= $63.5
30.
Exam Average
Malcolm Sander’s mean average on five exams is 81. Determine the
sum of his scores.
81x5= 405/5= 81
Answer:
sum= 405
36.
Determining a Necessary Grade
A mean average of 80 or greater for five exams is
needed for a final grade of B. Jorge Rivera’s first four exam grades are 73, 69, 85, and
80. What grade does Jorge need on the fifth exam to get a B in the course?
73+69+85+80= 307
80x5= 400
400-307=93
Answer:
Jorge must score at least a 93
.