In a short essay, discuss measures of variability as they are associated with frequencies. Include a discussion of range, variance, and standard deviation
What will be an ideal response?
The measures of variability are statistics that indicate the distribution's dispersion. The range is the difference between the smallest and largest values of a distribution. It measures the spread of the data and is simply the difference between the largest and smallest values in the sample. The difference between the mean and an observed value is called the deviation from the mean. The variance is the mean squared deviation from the mean, that is, the average of the square of the deviations from the mean for all the values. The standard deviation is the square root of the variance. Thus, the standard deviation is expressed in the same units as the data, while the variance is expressed in square units.
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Answer the following statement(s) true (T) or false (F)
1. Retailers often run trade promotions simultaneously along with consumer promotions 2. One objective for promotions in the trade channel is to increase store traffic, which benefits both manufacturers and retailers. 3. The fight for space on grocers' shelves has become very competitive, so manufacturers will do anything to get stores to stock their items—except paying a fee, which is illegal 4. A manufacturer helps a retailer by sharing the cost of local advertising. This allows the manufacturer to have some control over the process, and the retailer to advertise for a lower cost. They are taking part in a form of business-market sales promotion. 5. It is estimated that almost one-fourth of corporate America gives rebates as a type of business-market promotional technique.
Statutory law is judge made law
Indicate whether the statement is true or false