mbination for a safe consists of four numbers between and , and the safe is denigned se that nunbers canbe repestnd hebody tries to gain access to the safe by randomly guessing the combination what is the probabiy thut he or she ll gt he rect combination on the first try 0.000198 00001

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
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mbination for a safe consists of four numbers between Oand 9, and the safe is designed so that numbers can be repeatnd
hebody tries to gain access to the safe by randomly guessing the combination, what is the probabity that he or she will get the
rect combination on the first try
0.000108
O0000476
O 0.00013
O 0.0001
The fees for veterinary surgeries last month are listed below:
$2894.21
$1777.15
$2144.77
$4096.37
$4046.29
$1786.37
$3296.69
$4086.27
$2784.22
$4027.79
What was the mean cost for a surgery? Round your answer to the nearest cent.
The ages at death for a sample of 40 residents of postal code N1G are listed below. Find Pg5.
30
35
43
44
47
48
54
55 56
57
59
62
63
65
66
68
69
69
71
72
72
73
74 76
77
77
78
79
80
81
81
82
83
85
89
92
93
94
97
98
Refer to the table which summarizes the results of testing for a certain disease.
Positive Test Result Negative Test Result
Subject Has the Disease
111
4
Subject Does Not Have the Disease
11
172
If one of the results is randomly selected, what is the probability that it is a false negative (test indicates the person does not have the
disease when in fact they do)?
A sample of 272 log jarrs found in river channels in the Northwest U.S. is grouped into the resuting frequency distribution based on
the width of the channel in which the log jams were found.
Width of Channel (m) Frequency of Log jams
04
103
R2
10-14
15-19
20-24
25 29
ta cumulative frequency distribution were constructed for the width of tthe channels, what would be the cumulative frequency for the
class width less than 10 m
On a multiple choice test with 17 questions, each question has four possible answers, one of which is correct. For students who guess
at all answers, find the mean for the number of correct answers.
O a. 5.7 questions
o b. 12.8 questions
O C. 4.3 questions
o d. 8.5 questions
Refer to the table which summarizes the results of testing for a certain disease.
Positive Test Result Negative Test Result
Subject Has the Disease.
111
4
Subject Does Not Have the Disease
11
172
If one of the results is randomly selected, what is the probability that it is a false negative (test indicates the person does not have the
disease when in fact they do)?
QUESTION 12
if sales fall, "1" if sales are steady, "2" if sales rise moderately, and "3" if sales rise a lot. The simulator generates the following output.
0 10 2200 1 2 3 2020 221231 2 220 30021 21
A medical equipment manufacturer uses trend projection and seasonal factors to simulate sales for a given time period. It assigns "0"
Estimate the probability that sales will rise at least moderately.
For a specific population in a third world country where a vaccine is hard to obtain, there is a 81% chance of influenza. A group of 11
citizens from this population could not take the vaccine and were observed.
a. Find the probability that exactly 9 of the 11 citizens experienced influenza.
b. Find the probability that at most 9 of the 11 citizens experienced influenza.
Round to 4 decimal places.
A sample of 272 log jams found in river channels in the Northwest U.S. is grouped into the resulting frequency distribution based on
the width of the channel in which the log jams were found.
Width of Channel (m) Frequency of Log Jams
103
0-4
82
5-9
49
10-14
16
15-19
16
20-24
6.
25-29
If a cumulative frequency distribution were constructed for the width of the channels, what would be the cumulative frequency for the
class width less than 10 m?
Determine whether the given value is a statistic or a parameter.
The Ontario government wants information from North York General Hospital. Nurses measure and calculate the mean body
temperature for all 187 patients at the hospital.
O a. Parameter
O b. Statistic
QUESTION 2
Determine which of the four levels of measurement is most appropriate.
Biologists measure the water temperature in Celsius of the St. Lawrence River at Montreal.
O a. Interval
O b. Ordinal
OC. Nominal
O d. Ratio
he frequency distribution below summarizes the laboratory space prices in the city of Summerhill for the month of June. Determine
he width of each class.
QUESTION 5
Sale Price (in thousand $) Frequency
80.0-110.9
111.0-141.9
142.0-172.9
10
173.0-203.9
204.0-234.9
235.0-265.9
31
Transcribed Image Text:mbination for a safe consists of four numbers between Oand 9, and the safe is designed so that numbers can be repeatnd hebody tries to gain access to the safe by randomly guessing the combination, what is the probabity that he or she will get the rect combination on the first try 0.000108 O0000476 O 0.00013 O 0.0001 The fees for veterinary surgeries last month are listed below: $2894.21 $1777.15 $2144.77 $4096.37 $4046.29 $1786.37 $3296.69 $4086.27 $2784.22 $4027.79 What was the mean cost for a surgery? Round your answer to the nearest cent. The ages at death for a sample of 40 residents of postal code N1G are listed below. Find Pg5. 30 35 43 44 47 48 54 55 56 57 59 62 63 65 66 68 69 69 71 72 72 73 74 76 77 77 78 79 80 81 81 82 83 85 89 92 93 94 97 98 Refer to the table which summarizes the results of testing for a certain disease. Positive Test Result Negative Test Result Subject Has the Disease 111 4 Subject Does Not Have the Disease 11 172 If one of the results is randomly selected, what is the probability that it is a false negative (test indicates the person does not have the disease when in fact they do)? A sample of 272 log jarrs found in river channels in the Northwest U.S. is grouped into the resuting frequency distribution based on the width of the channel in which the log jams were found. Width of Channel (m) Frequency of Log jams 04 103 R2 10-14 15-19 20-24 25 29 ta cumulative frequency distribution were constructed for the width of tthe channels, what would be the cumulative frequency for the class width less than 10 m On a multiple choice test with 17 questions, each question has four possible answers, one of which is correct. For students who guess at all answers, find the mean for the number of correct answers. O a. 5.7 questions o b. 12.8 questions O C. 4.3 questions o d. 8.5 questions Refer to the table which summarizes the results of testing for a certain disease. Positive Test Result Negative Test Result Subject Has the Disease. 111 4 Subject Does Not Have the Disease 11 172 If one of the results is randomly selected, what is the probability that it is a false negative (test indicates the person does not have the disease when in fact they do)? QUESTION 12 if sales fall, "1" if sales are steady, "2" if sales rise moderately, and "3" if sales rise a lot. The simulator generates the following output. 0 10 2200 1 2 3 2020 221231 2 220 30021 21 A medical equipment manufacturer uses trend projection and seasonal factors to simulate sales for a given time period. It assigns "0" Estimate the probability that sales will rise at least moderately. For a specific population in a third world country where a vaccine is hard to obtain, there is a 81% chance of influenza. A group of 11 citizens from this population could not take the vaccine and were observed. a. Find the probability that exactly 9 of the 11 citizens experienced influenza. b. Find the probability that at most 9 of the 11 citizens experienced influenza. Round to 4 decimal places. A sample of 272 log jams found in river channels in the Northwest U.S. is grouped into the resulting frequency distribution based on the width of the channel in which the log jams were found. Width of Channel (m) Frequency of Log Jams 103 0-4 82 5-9 49 10-14 16 15-19 16 20-24 6. 25-29 If a cumulative frequency distribution were constructed for the width of the channels, what would be the cumulative frequency for the class width less than 10 m? Determine whether the given value is a statistic or a parameter. The Ontario government wants information from North York General Hospital. Nurses measure and calculate the mean body temperature for all 187 patients at the hospital. O a. Parameter O b. Statistic QUESTION 2 Determine which of the four levels of measurement is most appropriate. Biologists measure the water temperature in Celsius of the St. Lawrence River at Montreal. O a. Interval O b. Ordinal OC. Nominal O d. Ratio he frequency distribution below summarizes the laboratory space prices in the city of Summerhill for the month of June. Determine he width of each class. QUESTION 5 Sale Price (in thousand $) Frequency 80.0-110.9 111.0-141.9 142.0-172.9 10 173.0-203.9 204.0-234.9 235.0-265.9 31
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