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Would you say you eat to live or live to eat? was asked to each person in a sample of 1000
adults in a poll taken in in June 2013. 74% of the respondents answered "eat to live", and 26%
answ

TEST 1
QUIZ 1
1. The names of the positions in a corporation, such as chief operating officer or controller, are examples of
what type of variable?
Select one:
a. Quantitative
b. Ratio
c. Interval
d. Qualitative
2. What level of measurement is the number

Skylar Thomas Homework Chapter 14 Question #18
Annual sales ($ millions) Y
Annual sales ($ millions) Y
# of retail outlets, X1
# of auto registered (mil), X2
Personal income ($ bil), X3
Averge age of auto (years), X4
# of supervisors, X5
1
0.8994224429
0.

Blair Estilette
QMET 251-002
In this graph, I notice that Kane location excels in the numbers more than the Olean location.
This data is considered to be qualitative because you cannot put a whole number to the
location. You also cant get an average numbe

Blair Estilette
HW pg. 43 # 30
1. Values of grocery spending range between 0 and 600
2.Range containing a majority of the observations: Amounts is concentrated between 200 and
300 , and 80% of the grocery spending were in this range.
3. The class with the

1. The names of the positions in a corporation, such as chief operating officer or controller, are
examples of what type of variable?
Select one:
a. Quantitative
b. Ratio
c. Interval
d. Qualitative
2. What level of measurement is the number of auto accide

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Why sampling
(1) To contact the whole population would be time consuming. (2) The cost of studying all the items in a population may be prohibitive.
(3) The physical impossibility of checking all items in the population. (4) The destructive nature of some

1.
Class
Monthly
Commissio
Frequencie
ns
s
600 - 800
3
800 - 100
7
1000 - 1200 11
1200 - 1400 22
1400 - 1600 40
1600 - 1800 24
1800 - 2000 9
2000 - 2200 4
What is the relative frequency for those salespersons that earn from $1,400 up to $1,600?
Select one

1. The distribution of a sample of the outside diameters of PVC gas pipes approximates a
symmetrical, bell-shaped distribution. The arithmetic mean is 14.0 inches, and the standard
deviation is 0.1 inches. About 68 percent of the outside diameters lie bet

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A graph that shows the relationship between two intervals or ratio variable

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The probability of two or more events occurring concurrently is called a(n)
S

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What is the percentage of the total area under the normal curve within plus a

CHAPTER 5
A SURVEY OF PROBABILITY CONCEPTS
1.
Outcome
1
2
3
4
1
A
A
F
F
2
A
F
A
F
2.
Outcome
1
2
3
4
5
6
7
8
9
1
A
A
A
R
R
R
S
S
S
2
A
R
S
A
R
S
A
R
S
Chapter 5
52
3.
a.
b.
0.176 found by 6/34
Empirical
4.
a.
b.
0.40, found by 2/5
Classical
5.
a.
b.
c.
d.

Relative Frequency Table for vehicles sold
Relative class frequencies show the fraction of the total number of observations in each class,
capturing the relationship between a class total and the total number of observations.
Location
Kane
Olean
Sheffield

511
210
385
97
Population mean
Note:
Q15, P. 62
Nurse types
Nurse's aid
Practical nurse
Registered nurse
275
50
257
249
234
36
23
13
=
195 (using the average function provided in Excel, Average(.)
= 2340/12 = 195 (using the formula way)
The mean of a pop

Dot plot
most useful for smaller data sets, and histograms for large data sets.
Steps in creating dot plot in Excel
(1) A Dot Plot is simply an XY chart with a dummy Y axis series. First organize the data by sorting
the # of cars sold in, with the lowest

A few definitions
Probability - a value between 0 and 1, inclusive, describing the relative possibility (chance or likelihood) an event will occur.
Experiment - a process that leads to the occurrence of one and only one of several possible observations.
O

Experiment: Toss a coin three times. Observe the number of heads. The possible results
are: zero heads, one head, two heads, and three heads.
What is the probability distribution for the number of heads?
Random variable - a quantity resulting from an expe