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Basic Math
Social Research
Variables
Frequency, Percentage & Proportion
Ratio’s, Rates, & Percentage Change
100
∑
What is Sigma?
100
an explanation of the relationships among phenomena
What is Theory?
100
Which of the following is NOT a nominal level variable? a. level of education b. gender c. occupation d. make of automobile
Level of Education.
100
the number of times a particular thing occurs in a study
What is a Frequency?
100
Useful for comparing the relative size of two different categories or groups
What is Ratios?
200
Order of Operations
Parenthese, Exponents, Multiplication, Division, Addition, Subtraction.
200
a disciplined and careful attempt to answer questions, examine ideas, and test theories.
What is Research?
200
In the language of science, a variable that is thought to be causal is called
What is a. an independent variable
200
Twenty-three of the 50 states rejected a proposed constitutional amendment to make the house fly the National Insect. What percentage is this?
46%
200
In a class there are 8 Juniors and 10 Seniors what is the ratio of Juniors to Seniors? In a sentence
There are .8 juniors to ever 1 senior.
300
(∑Xi)2 For 1, 2, 2, 4, 4
What is 169
300
A theory differs from an hypothesis in that it is more a. testable b. specific c. general d. concrete
general
300
If people who habitually drive over the speed limit have more fatal accidents, then speed is
The independent variable
300
Forty of every two hundred students attend all of their classes. What percentage of the student body is this?
20%
300
Last year 8 out of 55 students got A's on their first exam what is the Rate of students to get A's for every 10 students?
A rate of 1.45 per 10 students
400
Data is the same thing as a. information collected in numerical form b. information collected in any form c. statistics d. proof
information collected in numerical form
400
If a researcher summarizes the age of 1,000 people by calculating the average age, she is using a. a qualitative technique b. an incorrect hypothesis c. data reduction d. non-empirical reasoning
data reduction
400
In the following question what are the variables? Does amount of energy drinks consumed affect a college students GPA and how many parties they go to?
Energy Drinks, GPA, number of parties
400
Find the Percentage for the frequencies. 5 6 6 7 N =
5 | 20.83 6 | 25.00 6 | 25.00 7 | 29.17 N=24
400
A nation had a birth rate of 20 in 1990. The rate fell to 13 in 2010. What was the percentage change?
-35%
500
∑Xi 2
What is “sum of the squared scores”?
500
In social research the purpose of statistics is to a. prove that the research theory is correct b. validate the research project design c. manipulate and analyze data d. ensure acceptance by the scientific community
manipulate and analyze data
500
What is the independent variable and dependent variable(s) and their levels of measurement. Does average level of education of a city affect death rate and what governmental party the state votes?
IV: Level of Education (ordinal)| DV 1: death rate (interval-ratio)| DV 2: Party vote (Nominal)
500
Find the N, Proportion, Percentage, & Percentage Cumulative for a data set of Frequencies: 2 4 5 3 N =
Frequency, Proportion, Percentage, Percentage Cumulative 2 .14 14.29 14.29 4 .28 28.57 42.86 5 .35 35.71 78.03 3 .21 21.42 99.45/100 N= 14
500
in 2010 there were 21 cases of herpes out of 572 students who got STI tests in 2015 there were 36 cases of herpes out of 621 students who got STI tests. What is the rate of students with herpes that got STI checks for each year and what is the Percentage change of students who got herpes per 100 students who got STI tests?
2010 = 3.67 out of 100 students.| 2015 = 5.8 out of 100 students.| 58% increase from 2010 to 2015