From the data below, find the a. mean b. median c.mode
Q: number 4
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- The table below represents a frequency distribution of the heights in centimeters of all 50 members of a club: Height (cm) 160 ≤x≤170 170X is a point estimator of: Select one: a. Population mean b. Sample mean c. Sample variance d. Population varianceCalculate the mean deviation (from mean) from the following data : Marks : 0-10 10-20 20-30 30-40 40-50 50-60 60-70 No. of Students : 5 8 15 7 3What provides a measure of the variance caused by random, unsystematic differences? a. the error term b. the F ratio c. MS d. SStotalFind the mean deviation about median for the following distribution : x : 5 7 11 13 15 17 f: 2 4 6 8 10 12 8For Table 4, determine the following point estimates: 7. The mathematical expectation. 8. the variance. 9. the root mean square deviation 10. the correlation coefficient between X and Y. Table 4 is in the attached image. Thank youUse Z-scores to determine which is a better relative golf score (remember that in golf, lower scores are better): Shooting a 75 in Tournament A where the mean score is 73 and the standard deviation is 3.3; or shooting a 76 in Tournament B where the mean score is 74 and the standard deviation is 3.5 .The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates. Use the frequency distribution to approximate the population mean and population standard deviation. Compare these results to the actual mean u = $1.506 and standard deviation o = $1.004. Click the icon to view the frequency distribution for the tax rates. Frequency distribution of cigarette tax rates Tax Rate Frequency 0.00–0.49 7 0.50-0.99 14 1.00–1.49 7 1.50–1.99 2.00–2.49 5 2.50–2.99 5 3.00–3.49 3.50–3.99 1 4.00-4.49 1The measure of dispersion that is influenced most by extreme values is Select one: a. the interquartile range b. the variance c. the standard deviation d. the rangeAll the following measures are used to measure the variation of data: Interquartile range, Standard Deviation, Mode. Select one: T FUse the following Frequency table to calculate the standerd deviation. Class Frequency 2……4 4 5……7 6 8…….10 3 11…..13 2 14…..16 5Calculate the average (mean) of the data shown, to two decimal places x 7.1, 11.1, 24, 15.4 ,3.4, 13.2, 20.1, 21.6