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Which sample would produce an expected value of 20?
n= 25 scores from a population with mean =20
What is the percentage of scores less than 80 if mean is 100 and standard deviation is 20?
z = (80 - 100)/20 = -20/20 = -1 Look up a table of z-scores: Probability = 15.87%
What is the range of 80 90 90 95 100?
The range of a set of numbers is the difference between the highest and lowest values. In this case, the highest value is 100 and the lowest value is 80. Therefore, the range of the numbers 80, 90, 90, 95, and 100 is 20.
How do you find the mean of the data?
Th find the mean of a data set, you add up all the values in the data set and divide this sum by the number of data values. For example, the mean for the data set 2, 5, 6, and 7 is given as 2 plus 5 plus 6 plus 7, which is 20. You divide this sum by number of values in the data set, which is 4 to get 5 as the mean.
What is the relative dispersion with the mean of 45000 and a standard deviation of 9000?
Relative dispersion = coefficient of variation = (9000/45000)(100) = 20.
The value of a random variable are uniformly distributed between 20 and 100 the mean of this distribution is?
The value of a random variable that is uniformly distributed between 20 and 100 can be calculated by calculating the sum of numbers from 20 to 100 and dividing it by the difference between 100 and 20. The resulting mean is 58.5.
What is the answer 3x plus 2x 100?
If you mean 3x + 2x = 100, then x = 20. If you mean something different, you'll need to spell it out.
803 plus 20-100 equals?
803 + 20 = 823823 - 100 = 723803 plus 20 minus 100 equals 723.
What is 100 plus 20 equal?
100 + 20 = 120
Is 100 plus 50 plus 20 equals 170?
100 plus 50=150. 150+20=170.
100 plus 40 plus 100 plus 30 plus 100 plus 20 plus 10 equals?
The total is 400.
What plus what 20?
200 plus 20 is 220.
What percent increase is 20-30?
percent increase = 50% % increase =|original value - new value|/original value * 100% = |20 - 30|/20 * 100% = 10/20 * 100% = 0.50* 100% = 50%
What is the percent change in these numbers 20 to 17?
% change = 15% (decrease)% change = |original value - new value|/original value * 100%= |20 - 17|/20 * 100%= 3/20 * 100%= 0.15 * 100%= 15% (decrease)
20 plus -100 x 5?
20 + (-100 * 5)20 + -500-480
What is 80 plus 20?
80 + 20 = 100.
What is 100 divided by 20 plus 10 minus 3 plus 8?
20
