ECO452 Tma Solutions
1. If a variable is continuous, it can assume an infinite number of values within a given:
—>> interval
Value
Probability
Line
2. The total area under the curve of a probability distribution, being the sum of individual probabilities is equal to
2
3
—>> 1
4
3. What distribution is usually used to predict occurrence of events that are mutually exclusive?
Contnuous distribution
Nominal distribtuion
—>> Binomial distribution
Interval distribution
4. A variable which is one that can assume only finite and distinct value is called
Interval random
—>> Discrete random
Continous
Independent variable
5. The normal curve is:
V-shaped
—>> Bell-shaped
Curved shape
K-shaped
6. What is the probability of obtaining 3 heads in 5 toss of a balanced coin?
—>> 0.3125
0.52
0.55
0.499
7. The model that attempts to expose the relative and combine effect of the independent variable on the dependent variable is called
Simple regression
—>> Multiple regression
Correlation
T-value
8. What is usually used in determining the probability of a designated number of successes per unit of time?
Normal distribution
Nominal distribtuion
Passion distribution
—>> Poisson distribution
9. An important feature of probability distribution is that the areas under these curve represents:
Variables
Statistic
Data
—>> Probabilities
10. What is a continuous probability distribution and the most commonly used distribution in statistical analysis:?
Abnormal distribution
Curved distribution
—>> Normal distribution
K-class
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