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Probability and Statistics
Probability and Statistics
19 terms
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Test your knowledge and explore the world of probability and statistics
Flashcards
19 cards
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Questions
19
Answers
1
Is correlation the same as causation?
False
True
2
Does a larger sample size generally improve an estimate's accuracy?
False
True
3
Which distribution has a constant probability?
Normal
Binomial
Uniform
Poisson
4
Which graph is best for categorical data?
Histogram
Bar chart
Scatter plot
Line graph
5
P-value less than 0.05 means?
100% certain
Not significant
Very significant
No difference
6
Regression analysis predicts what?
Future outcomes
Past trends
Current status
Historical data
7
Can you predict the exact outcome in probability?
False
True
8
Independence assumption is crucial for which test?
Chi-square
Linear regression
T-test
ANOVA
9
Pie charts are best to show what?
Trends over time
Proportions
Relationships
Data variability
10
Rolling a 6 on a fair die is what probability?
1/3
1/12
1/2
1/6
11
What's the probability of flipping heads?
75%
25%
100%
50%
12
A normal distribution is also called?
Square curve
U curve
Straight line
Bell curve
13
A type I error is also known as?
False negative
True negative
False positive
True positive
14
Is the median affected by extreme values?
False
True
15
Confidence intervals estimate what?
Future predictions
Possible range
Previous data
Exact values
16
Which measure is most affected by outliers?
Median
Range
Mode
Mean
17
Which test checks the difference between means?
ANOVA
Chi-square
Correlation
T-test
18
Standard deviation measures what?
Variability
Mean
Summation
Median
19
Outliers are often found using what plot?
Histogram
Pie chart
Box plot
Bar chart
