Median

Mean, Mode and Median Ungrouped and Grouped Data Ungrouped Data refers to raw data that has been ‘processed’; so as to determine frequencies. The data, along with the frequencies, are presented individually. Grouped Data refers to values that have been analysed and arranged into groups called ‘class’. The classes are based on intervals – the range of values – being used. It is from these classes, are upper and lower class boundaries found. Mean Mean The   ‘Mean’ is the total of all the values

of a typical costumer is 1709.125 , and the value along which most of the account balance cluster is 1721.5 We have 12 of the checking accounts are above 2000 which represent 20% of the total checking account Q2. Determining the mean and the median of the checking accounts for Century National Bank, we are trying to find the single value that will represent all 60 checking accounts in our sample. That single value will be measure of central tendency. Arithmetic mean is widely used measure of

pay interest versus those that do not. Once again though the difference is not shockingly big. The mean of the group of customers that do not pay interest is 10.07 and therefore lower than the group of individuals who do pay interest, 10.94. Both medians are very close, 10.00 for the customers who don’t pay interest and 10.05 for the ones who do. However the variance for the customers that don’t pay interest is higher than the variance of the customers who do. This indicates that there is a more homogenous

of correct responses: 28,39 Mean number of incorrect responses: 24,61 Mean percentage of correct responses: 53,57% Mean percentage of incorrect responses: 46,47% Median number of correct responses: 28 Median number of incorrect responses: 25 Median percentage of correct responses: 52,83% Median percentage of incorrect responses: 47,17% Statistical Measures of Dispersion: First Quartile for number of correct responses: 19 First Quartile for number of incorrect responses:

restocking times reported on the recording sheets. The mean was 7 minutes and 32 seconds. The median was 7 minutes and 37 seconds. During the second round of data collection, 48 recording sheets were distributed over four work days, three shifts per day, and four work areas per shift. There were 110 restocking times reported on the recording sheets. The mean was 7 minutes and 13 seconds. The median was 7 minutes and 16 seconds. Employees who restocked the work areas were given questionnaires that

soft drinks in Center City is 7.6 cans. Similarly, the median age is 35, which indicates that half of the persons in this sample are younger than 35 while the other half is older than 35. The median consumption remains close to the mean, 7 cans of soft drink. The median soft drink consumption (7 cans) shows that half the people in this sample consume more than 7 cans of soft drink while the other half consume less than 7 cans. The mean and median age or soft drink consumption for Center city appear

Median age, fertility and morality rates are all contributing attributes that pose both advantages and challenges towards the people of Australia and Japan.[Topic Sentence] An ageing population is a widespread aberration that ultimately provides severe insinuation of both developed and developing countries. This phenomenon entails issues regarding the rapid shifts of the working-age population, children and seniors [1]. As such, this process is predominately determined by the decline of fertility

The variable age is the independent variable and is a ratio level of measurement (Loiselle et al., 2011). The measure of central tendency to describe age are in table 1.2 are the mean of 57.62 which is the average age, the median which is the middle score within the distribution when all scores are organized of 58.5 and the mode of 58 which is the most frequently occurring age (Loiselle et al., 2011). The measures of variability are the range of 69 with a minimum age of 22 and a maximum age of 91

of the problem. Gathering information from the data is what Art Costa’s calls his first level of Questioning, which is gathering information (Daws & Schiro, 2008). Students must have a good understanding of mean, median, and mode before solving this type of statistical problem. Median and mode are often easily found Van De Walle, Karp, and Bay-Williams have defined mean in two different conceptual understandings. According to Van De Walle, Karp & Bay-Williams there are two distinct interpretations

CHAPTER THREE DESCRIPTIVE STATISTICS: NUMERICAL MEASURES MULTIPLE CHOICE QUESTIONS In the following multiple choice questions, circle the correct answer. 1. Which of the following provides a measure of central location for the data? a. standard deviation b. mean c. variance d. range Answer: b 2. A numerical value used as a summary measure for a sample, such as sample mean, is known as a a. population parameter b. sample parameter