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What is cumulative frequency distribution?
The cumulative frequency of a random variable X for the value x is the number of observations such that X ? x.
Difference between numeric constants and numeric variables in qbasic?
A constant is not supposed to change during program execution. A variable may change, in the sense that you assign a value, then another value, then another...A constant is not supposed to change during program execution. A variable may change, in the sense that you assign a value, then another value, then another...A constant is not supposed to change during program execution. A variable may change, in the sense that you assign a value, then another value, then another...A constant is not supposed to change during program execution. A variable may change, in the sense that you assign a value, then another value, then another...
In a confidence interval what information does the margin of error provide?
The confidence interval consists of a central value and a margin of error around that value. If it is an X% confidence interval then there is a X% probability that the true value of the statistic in question lies inside the interval. Another way of looking at it is that if you took repeated samples and calculated the test statistic each time, you should expect X% of the test statistics to fall within the confidence interval.
What is the percent of increase from 124 to 149?
Formula: % increase=[(new value - old value) / old value] x 100% % increase = (149-124) /124 x 100% = 20.16%
How is the expected value of a normal distribution computed?
If a random variable X is distributed normally with probability distribution function p(x), then the expected value of X is E(X) = integral of x*p(x)dx evaluated over the whole of the real line.
