iv Find the probability that at most 25 students score more than 31 marks Answer V Use the range rule of thumb to identify if

Solve the following and get the range and variance with the data 25,27,30,32,32,40,45,46,47,48

Abdomen data: 83.0, 87.9, 85.2, 88.6, 77.1, 85.3, 100.0, 94.4, 81.9, 88.5, 82.5, 100.5, 76.5, 86.4, 90.7, 83.6, 106.8, 77.6, 102.9, 90.9, 79.7, 73.9, 79.1, 72.8, 88.2, 100.1, 89.6, 95.9, 98.8, 76.3, 83.5 105.0, 90.8, 83.5, 84.5 101.8, 76.6, 76.4, 88.7, 92.4, 81.2, 91.6, 97.5, 80.0, 88.7, 100.5, 95.6, 92.1, 96.4, 74.6, 83.4, 106.0, 96.4, 92.8, 95.1, 90.4, 100.4, 115.9, 90.8, 81.9, 75.0, 90.3, 90.3, 108.8, 79.4, 83.2, 110.3, 91.6, 92.7, 76.0, 79.5, 86.1, 104.5, 104.6 Assume that the abdomen circumference of males have a distribution that isapproximately bell-shaped. Using the mean (= 89.7) and standard deviation (=9.9) as estimates of the population mean and standard deviation, a. Construct a diagram, using the Empirical Rule, to illustrate the percentagesof data values in each of the 8 sections that diagram includes.b. Between what two measurements will about 95% of the abdomencircumferences fall?

please solve : B, C, and D     ch 9

The Nenana Ice Classic is an annual contest to guess the exact time in the spring thaw when a tripod erected on the frozen. Tanana River near Nenana, Alaska, will fall through the ice. The contest has been run since 1917. The 2017 jackpot was $267,444. The table gives simplified data that record only the date on which the tripod fell each year. The earliest date so far is April 20. To make the data casier to use, the table gives the date each year in days starting with April 20. That is, April 20 is 1, April 21 is 2, and so on. Days from April 20 for the Tanana River tripod to fall Duy Year 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 Year 1948 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 Days from April 20 for the Tanana River tripod to fall 1983 11 1984 22 14 22 22 23 20 22 16 7 23 17 16 19 21 12 19 Day 19 9 15 19 21 15 17 21 17 11. 11 10 11 21 10 20 Days from April 20 for the Tanana River tripod to fall Year 1934 1935…