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Statistics review ch. 1-5 Flashcards | StudBud
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Statistics review ch. 1-5
Statistics review ch. 1-5
20 terms
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1
What is the mid-point formula?
Upper class limit/ 2 + lower class limit
2/lower class limit + upper class limit
2+upper class limit/lower class limit
Lower class limit + upper class limit/2
2
How do you read P(B|A)?
Probability of A given B
Independent probability
n! factorial
Probability of B given A
3
How do you find the x value (formula)?
x = zσ - μ
x = z + μσ.
x = μ / zσ
x = μ + zσ
4
What is a population?
All the people in the world
In statistics, a population is a type of statistical analysis.
Collection of all outcomes, responses, or measurement that are of interest.
In statistics, a population refers to a single data point.
5
What is the formula for dependent probability?
P=A+B
P(B|A)=P(B)
P(A)+P(B)=P(A|B)
P(A|B)=P(A)
6
What is a stem-and-leaf plot?
A statistical method for predicting future outcomes
A type of bar chart used to compare categorical data.
A tool used to edit photographs.
Examples of exploratory data analysis
7
What is sample space?
A type of graph used to visualize data trends.
The set of all possible outcomes or events in a probability experiment.
A statistical method for analyzing survey results.
A research technique for selecting participants.
8
What is frequency distribution?
A graphical representation of geographical data on a map.
A table or graph that shows the number of times each value or range
A method for calculating the average of a dataset.
A type of statistical test used to compare groups.
9
What is the relative frequency formula?
(Frequency of the class / Total frequency)
Sample size * Population mean
Mean / Standard Deviation
(Maximum value - Minimum value) / 2
10
How do you pick randomly for a simple random sample?
Appendix C table 3
Appendix B table 1
Appendix B table 2
Google
11
What is a discrete random variable?
A type of categorical data that can't be measured.
A variable that can take on distinct, separate values, often countable.
A type of statistical software.
A variable that can take any value within a continuous range.
12
What is the formula for independent probability?
P(A)+P(B)=P(A|B)
P(B)=P(A)
P(B|A)=P(B)
P(A|B)=P(A)
13
What is the formula for population standard deviation?
Mean * Median
σ = √[(Σ(xi - μ)²) / N]
√(Maximum value - Minimum value)
(Sum of values) / (Number of values)
14
What is the formula to transform a z-score into an x-value given population?
x = μ / zσ
x = zσ - μ
x = μ + zσ
x = z + μσ
15
What is a continuous random variable?
A variable that can only take on specific, distinct values.
A variable that can take any value within a given interval or range
A type of qualitative data.
A type of statistical test.
16
What is the formula for variance of a discrete random variable?
σ² = Σ(xi - μ)² * P(xi)
σ² = μ * (1 - μ)
σ² = (Maximum value - Minimum value)²
σ² = (Σxi) / n
17
What is a sampling distribution?
A method for determining the population size.
A type of statistical test used to compare groups.
A probability distribution that is obtained by taking repeated samples
A type of data visualization technique.
18
Sample or population: The final score of each gamer in a tournament.
None
Sample
Both
Population
19
What is standard normal distribution?
A distribution with a mean of 1 and a standard deviation of 0.
A normal distribution with a mean of 0 and a standard deviation of 1
A type of binomial distribution.
A skewed distribution with a long tail.
20
What is statistics?
A type of software used for creating digital art.
A branch of mathematics that deals with the study of shapes and sizes.
The study of analysis, interpretation, and organization of data.
The study of the solar system and its planets.
