What is the variance if the standard deviation is 1? A, 0.1 B, 1 C. 5 D. 100
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What is the variance if the standard deviation is 1?
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A, 0.1 |
B, 1 |
C. 5 |
D. 100 |
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- Which of the following refers to statistical significance or the probability of finding statistical significance? a. T-value b. Sum of Squares Total c. Standard Error d. Standard Deviation e. P-ValueAssume you have taken 125 samples of size 81 each from a population. The population variance is 64. What is the standard deviation of each (and every) sample mean? 0.5 0.89 9 8Q7
- Given the standard deviation of 7, what is the variance? a. 49 b. 7 c. square root of 7 d. square of 49Q13. Derive mean of gamma distribution.A fitness center bought a new exercise machine called the Mountain Climber. They decided to keep track of how many people used the machine over a 3-hour period. Here X is the number of people who used the machine. X 0 1 2 3 4 PX 0.2 0.2 0.1 0.4 0.1 Find the mean,variance and standard deviation
- The standard deviation of the scores: 2, 1, 1, 8 is O 1.71 2 2.92 O.8.5When would you use a chi-square analysis A.When the variance between two groups are equal B. When the data are normally distributed C. When you only have categorical variables to analyze3. Complete the first 3 columns of the table below. Values Deviations Square deviations X - X X (X-X)² Standard (z) scores X - X S Z= a. Compute the sample variance and sample standard deviation by definition. b. Fill in the last column of the table c. Compute the coefficient of variation.
- 3. Find the standard deviation of X. A. 2.77 B. 2.79 C. 2.81 D. 2.83 E. 2.85The standard error of the mean is a Sample standard deviation b. Standard deviation of the population c.Standard deviation of the mean d.Standard deviation of the distribution of sample meansIf the mean of a frequency distribution is 100 and the coefficient of variation is 45%, then what is the value of the variance? 1. 2025 2. 450 3. 45 4. 4.5
