A disadvantage of using an arithmetic mean to summarize a set of data isa.It can be...
please answer all the question 1.1 Data that is recorded on a 1 – 5 rating scale (e.g. 1 = poor, 2 = fair, 3 = good, 4 = very good, 5 = excellent) to a question such as “Rate the level of service you received from your most recent experience with your bank” is: A. nominal data B. continuous data C. interval data D. ratio data E. ordinal data 1.2 A positively skewed histogram means that: A. there are...
Question 16 Data sets can have more than one median a. True b. False Question 17 The median divides the data set, sequentially, by values below and values above the mode a. True b. False Question 18 This measure of central tendency provides the arithmetic average a. mode b. median c. mean d. distribution Question 19 Nominal data can be measured using the mean a. True b. False Question 20 The median represents the 50th percentile of a data set...
Calculating Mean, Median, and Mode (Individual Data) Individual data – represents individual values in a set. Mean – is the average value of the values in a set. It is calculated by dividing the sum of the individual values in a set by the number of values in that set. Median – better represents a measure of central than the mean in a set of data that are skewed one direction or another. To calculate the median value of individual...
Year Annual Return Year Annual Return 9% 8% 12 14 10 4 4 12 Mean The mean, also known as the arithmetic mean, tells the The mean adds up all the observations and divides by the number of observations, as shown in the following formula value a variable is expected to take rt The mean (or average) return for this stock over the past 12 years is mean, while μ represents a or notational purposes, x-bar represents a However, they...
How is the mean different from the median of a data set? How is the range different from the standard deviation of a data set? Additionally, using the data set {56, 67, 77, 92, 100, 12} determine the value for each of these terms.
52.1 Three primary statistics are used to describe a variable's central tendency, defined as the average behavior of the variable. You can use these statistics, known as the mean, the median, and the mode, to draw meaningful conclusions about a variable's past behavior and to predict its future behaviar An investor is considering a stock with the following returns over the past 12 years: Year Annual Return Year Annual Return 12 10 12 The mean, also known as the arithmetic...
Consider the following stem and leaf display for a set of sample data. Stem Leaves (unit = 0.01) 0 |9 1 |5 6 2 |1 a 8 9 3 |2 3 5 7 8 4 |4 5 b 9 5 |2 3 9 (a) (i) Find the 1st Quartile (?1) and 3rd Quartile (?3) in terms of a and b. (2 marks) (ii) Suppose the inter-quartile range is 0.22 and the distances between the two quartiles and the median...
Descriptive statistics like mean, median, range, and standard deviation can be used to summarize data. But the value isn't in knowing how to calculate these numbers, it's in knowing what they mean—or even which ones to consider. This discussion explores that by asking you to take a strictly hypothetical look at a serious circumstance. An article you might want to consider in this context is Stephan Jay Gould’s The Median Isn’t the Message. 1. If you were diagnosed with a...
data valu es in a 7. The 68-95-99.7 rule for normal distributions states that 95% of the mally distributed data set will be within 2 standard deviations of the mear Generate numbers with a distribution that has fewer than 95% of the data values within 2 standard deviations of the mean. Can you generate a set that has many fewer than 95% of the data values within 2 standard deviations of the mean? How small can you make that percentage?...
PRONS AND CONS OF USING ARRAYS: Set 01: Pro: It can hold the collection of similar items Con: It can hold the collection of similar items only Set 02: Pro: Memory allocated is continuous. You can increment the index to move to next element. You can refer to any item in array using its index Con: Memory allocated is continuous. If that required amount of memory is not continuously avail, well, problem! Insertion and deletion in between the array are...