Assignment 11 Section 6.1 Pages 311-312
Problem #6
area = _.4706_
Problem #12 area = _.2266_
Problem #18 area = _.4634_
Problem #24 area = _.0684_
Problem #30 probability = _20.61%_
Problem #36 probability = _5.5%_
Problem #42 z score = _-1.98_
Assignment for Page 277
6) n = _20 _
p = _1/5_
X = _15_
P(15) = _1.66 ^-6 _
Is this event likely to occur? _no _
8) A) n = _10_ p = _.103_
_0,1,2_
q = _.897_
X=
P(no more than two drop out) = _92.4 %_
8) B) n = _10_ p = _.103_
_6,7,8,9,10_
q = _.897_
X=
P
Assignment 7: Section 4.2
4) P(lifeguard or manager) = _2/3_
12) a) P(fiction) = _1/2_
b) P(not childrens nonfiction) = _10/13_
c) P(adult or childrens nonfiction) = _1/2_
14) a) P(threatened and in US) = _55/766_
b) P(an endangered foreign bird) = _175/7
Assignment # 5 Section 3.3
Problem 10
Z score for oldest (Robert C. Byrd): _2.304_
Z score for youngest (John Sununu: _-1.696_
Problem 14
Z score for mathematics test: _2_
Z score for history test: _2.5_
Which did she perform better on? Mathematics or His
HW ASSIGNMENT 3 FOR PAGES 118-121
Problem #2
mean = _1788.55_
median = _1952_
mode = _n/a_
midrange = _2191_
Problem #6
mean = _19_
median = _10_
mode = _7_
midrange = _28.5_
Problem #28
Weighted Mean = _1416.667_
Problem #30
Weighted Mean = _83.2_
8) Range = _24
Class width = _5_
Class limits
Class boundaries
Frequency
7.5-12
13-17
18-22
23-27
28-32
Total
7-11.5
12-16.5
17-21.5
22-26.5
27-31.5
1
2
10
7
5
25
Cumulative
Frequency
4%
8%
40%
28%
20%
10) Range = _56_
Class width = _8_
Class Limits
Class