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8. Computing the median for discrete and continuous variables Aa Aa Consider the sample of n...
Consider the sample of n = 6 scores whose frequency distribution histogram is shown here. Divides Area in Half The total area in the histogram - boxes Half the area in the histogram . boxes. Add a vertical line to the frequency distribution histogram that divides the total area exactly in half. In other words, place the vertical line so that it makes the area on the right and left of the line equal. (Hint: Drag the line labeled Divides...
Divides Area in Half 4 The total area in the histogram = boxes Half the area in the histogram- boxes Add a vertical line to the frequency distribution histogram that divides the total area exactly in half. In other words, place the vertical line so that it makes the area on the right and left of the line equal. (Hint: Dragthe line labeled Divides Area in Half onto the graph. First, make sure your line is vertical by positioning its...
10. Calculating the mean, median, and mode when scores are changedor removed Consider the following sample set of scores. Assume these scores are from a discrete distribution. 1 22 40 45 45 52 60 69 81 94 For the given data, the mean is , the median is ▼ , and the mode is Suppose the score 1 in the data is mistakenly recorded as 21 instead of 1. For the sample with this error, the mean is the median...
Q1. A sample of n = 8 scores has a mean of M = 7. One score in the sample is changed from X = 20 to X = 4. What is the value for the new sample mean? Q2. A sample yielded the following scores: 2, 3, 4, 4, 5, 5, 5, 6, 6, 7 Assume that the scores are measurements of a discrete variable and find the median. Median = Assume that the scores are measurements of a...
7. Constructing histograms and polygons Aa Aa The frequency distribution table for a variable measured on a ratio scale is given here. Score f 4 8 Use a polygon to graph the frequency distribution. (Hint: You will use the points to construct your polygon, not the rectangles. The line segments automatically connect your points. Lay the points of the polygon across the bottom of the graph to start; then drag each point to its correct height. This will avoid the...
8. Bar graphs Aa Aa A 2009 Pew Research Center survey asked a sample of 1,504 adults living in the United States for their opinions on recent technological advancements, such as online shopping, cell phones, and social networking. Respondents categorized each advancement as a change for the worse, hasn't made much difference, a change for the better, or don't know. A summary of respondents' opinions on Blackberries/iPhones follows: Percent of Respondents Response Change for the worse 25 12 Hasn't made...
8. Bar graphs Aa Aa A 2009 Pew Research Center survey asked a sample of 1,504 adults living in the United States for their opinions on recent technological advancements, such as online shopping, cell phones, and social networking. Respondents categorized each advancement as a change for the worse, hasn't made much difference, a change for the better, or don't know A summary of respondents' opinions on Blackberries/iPhones follows: Percent of Respondents 25 12 56 Response Change for the worse Hasn't...
omplete: Chapter 6 Problem Set . Computing probability from a frequency distribution A bucket contains N 12 tickets with different scores. Let X be the outcome of a random draw from this bucket. The graph below shows the frequency distribution histogram for these scores Aa Aa FREQUENCY The table below shows the probability distribution for X. X Value 1 23 4 5 p(X) 1/12 2/12 2/12 3/12 4/12 ability that this score shows a 3 is p(x- Suppose you take...
objective question What is the mode and the mean for the following set of numbers? {4,9,8,2,16,4,4,8,9,6} O A. Mean = 7, mode =8 O B. Mean = 7, mode =4 O C. Mean = 6, mode =8 O D. Mean = 8, mode =9 You are conducting a survey of the people of the United Kingdom to find out how popular the racket sports are. You randomly choose people to call, and make 1,000 phone calls to people scattered across...
Assignment-2.pdf (page 1 of 2) Q Search SYC 2317 Mork W. Tengler, MS Assignment #2 An instructor obtained the following set of sores from a 10-point quiz for a class of 26 students: 2.1 8, 5, 4, 5, 5, 7, 6, 4, 3, 4, 5, 6, 6, 4, 5, 5, 10, 6, 9, 5, 7, 8, 2, 6, 7, 4 Place the scores in a frequency distribution table. b. Sketch a histogram showing the distribution. Using your graph, answer the...