MATH110 – College Algebra – UBC – Practice Exam 1 with Detailed Solutions

MATH110 UNIT 1 HW PRACTICE EXAM 1

1. Identify the lower class limits: 25, 35, 45, 55, 65, 75, 85

Identify the upper class limits: 34, 44, 56, 64, 74, 84, 94

Identify the class width: 10

Identify the class midpoints: 29.5, 39.5, 49.5, 59.5, 69.5, 79.5, 89.5

Identify the class boundaries: 24.5, 34.5, 44.5, 54.5, 64.5, 74.5, 84.5, 94.5

Identify the number of individuals included in the summary: 87: UNIT 1 Part 2

1. Identify the lower class limits, upper class limits, class width, class midpoints, a
class boundaries for the given frequency distribution. Also identify the number
individuals included in the summary.

Age (yr) when award was won
Frequency
25 -34
29

35 -44
35

45-54
15

55 -64
2

65 -74
4

75 -84
1


, MATH110 UNIT 1 HW PRACTICE EXAM 1

85 -94
1
2. Identify the lower class limits (in 1000
cells/¼ L): 0 ,
100 , 200 , 300, 400, 500 , 600

Identify the upper class limits (in 1000 cells/¼ L): 99 , 199 , 299 , 399 , 499 ,
599 , 699

Identify the class width (in 1000 cells/¼ L): 100

Identify the class midpoints (in 1000 cells/¼ L): 49.5, 149.5 , 249.5, 349.5, 449
, 549.5, 649.5

Identify the class boundaries (in 1000 cells/¼ L): -0.5, 99.5, 199.5 , 299.5,
399.5, 499.5 , 599.5, 699.5

Identify the number of individuals included in the summary: 150: 2. Identify t
lower class limits, upper class limits, class width, class midpoints, and cla
boundaries for the given frequency distribution. Also identify the number of individua
included in the summary.

Blood Platelet Count of Males (1000 cells/L)¼
Frequency
0 -99
3

100 -199
53

200 -299
78




, MATH110 UNIT 1 HW PRACTICE EXAM 1

300-399
15

400-499

0

500 -599
1
600 -699
0
3. Identify the lower class limits: 100 , 200 , 300, 400, 500

Identify the upper class limits: 199 , 299 , 399 , 499, 599

Identify the class width: 100

Identify the class midpoints: 149.5 ,
249.5 , 349.5, 449.5, 549.5

Identify the class boundaries:
99.5 , 199.5, ,299.5, 399.5 , 499.5, 599.5

Identify the number of individuals included in the summary: 148: 3. Identify the
lower class limits, upper class limits, class width, class midpoints, and class
boundaries for the given frequency distribution. Also identify the number of
individuals included in the summary.

Blood Platelet Count of Females (1000 cells/L)¼
Frequency

100 -199: 26
200 -299: 90