d. Develop a relative frequency histogram. Choose the correct graph below. A. 0.24- Relative Freq. 0 4 11 Data Value B. 0.24- Relative Freq. 0 4 11 Data Value C. 0.24- Relative Freq. 0 4 11 Data Value D. 0.24- Relative Freq. 0 4 11 Data Value e. Compare the two histograms. Why do they look alike? A. The two histograms look alike because the same data are being graphed. The bars represent either the frequency or relative frequency. B. The two histograms look alike because the same data are being graphed. The bars represent either the cumulative frequency or cumulative relative frequency. C. The two histograms look alike because the frequencies are found by dividing the relative frequencies by n, the total number of observations. D. The two histograms look alike because the relative frequencies are found by dividing the frequencies by 100.
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(b) Suppose the original dataset is unknown, and only given in grouped form, with each of the two class intervals shown below containing half the values. | Class Interval | Relative Frequency | | :--- | :--- | | [0, 20) | | | [20, 100) | | * Complete this relative frequency table, and calculate the group sample mean x̄group and group sample median. How do these compare with the values found in (a)? * Sketch the relative frequency histogram. * Sketch the density histogram. * Label the group sample mean and median in each of the two histograms. In which histogram does the mean more accurately represent the ‘balance point’ of the data, and why?
Adi S.
What is the difference between a relative frequency histogram and a density (scale) histogram? Select all that apply. A. Density histograms are used when there are classes/bins with different widths. B. When the values of x̄ and x̃ are not close to each other. C. There is no difference between a relative frequency histogram and a density histogram. D. The sum of the bars in a density histogram is 1 as opposed a relative frequency histogram where the total area of the bars is equal to 1. E. When the values of x̄ and x̃ are close to each other. F. The sum of the bars in a relative frequency histogram is 1 as opposed a density histogram where the total area of the bars is equal to 1. G. none of the above
Qudsiya A.
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