Section 1.1
1.
2.
Frequency Distribution Table
Class
Count
3. 8-15
4. 16-23
2
24-31
6
32-39
9
40-47
4
48-55
1
Section
5.
6.
7.
8.
9.
10.
Interval
Ratio
Nominal
8
Statistic
694 Republicans is the population and 84% is
the sample.
Inferential statistics.
De
Tiffany Carr
Boyd
THP #4
November 4, 2014
Social Thinking
People deal with social situations in everyday life and people will always react differently
to social situations that they become involved in. Social situations can often be influenced by
media, p
HWB-5
1. The values of a probability density function are never negative for any value of the random
variable and the area under the graph of a probability density function is 1.
2. Standard Deviation = 1, mean = 0
3. -0.78
4. 0.98
5. 0.68
6. 0.03
7. 0.25
HWB 3
1. False
2. Negative linear correlation
3.
4. -0.417
5. Negative linear correlation
6. Prediction values are only meaningful for x values in the range of the data.
7. (
x , y
)
8. y = 900.959 + 1.329x
9.
10. 954.119
11. 934.184
12. H A,H B, H C, H
HWB2
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
True
True
Symmetric
B
Mean 200.4 Median 219 Mode there is no mode because no 2 entries have been repeated
Mean 61.2 Median 55 Mode 125
Mean 333.667 Median 253 Mode
Statistics (MATH141), Extra Credit: 1
Name: Carlos Baudett
Instructions Please answer all questions. You must show your work to get partial credit. This
extra credit assignment is worth 10 points.
25
Four sets are listed in the table below. Each set repre
STATISTICS DISCUSSION BOARD QUESTIONS/ANSWERS
MATH 141
Weeks 6, 7 and 8
Week 6 Question: What is the difference between independent events and mutually exclusive events?
Independentevents,inregardstoStatistics,referstosituationthelikelihood(probabilityori
STATISTICS DISCUSSION BOARD QUESTIONS/ANSWERS
Weeks 4 and 5
MATH 141
Week 4 Question:
What is mean? Median? Mode? What role do mean and standard
deviation play?
The mean is the average of all the numbers. Median is the middle value in a
given data set (wh
Week9Question:Whatisanormaldistribution?Howcanyoufindareaunderanormalcurveto
theleftofagivenvalue?Totheright?Betweentwovalues?
A normal distribution is a bell curve.
50% of the values will be less than the mean and 50% will be greater than the mean.
Addit
Week 3 Question: What is a frequency distribution? What is the difference between Histogram and Pareto
chart?
Frequency distribution is when you have a table (or a graph) that displays the
information in a way so you can make a visual conclusion from the
Week 1 Question: Why do you study Statistics? Can you give some real-life examples in which Statistics is
used? Can you give some examples involving population, sample, parameter and statistic?
Statistics are studied so people can present information in a
Week 2 Question: What is the difference among nominal, ordinal, interval and ratio level of measurement? How
many ways can data be collected? What are key elements of a well-designed experiment?
Nominal level of measurement is not a way to measurement a "
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QUESTION 1
Provide