Hurricanes are categorized with winds 111-130 miles per hour (mph) corresponding to a category 3 hurricane, winds 131-155 mph corresponding to a category 4 hurricane, and winds in excess of 155 mph corresponding to a category 5 hurricane. The following data represent the number of major hurricanes (H) in a certain region (category 3, 4, or 5) each decade (x) from 1921 to 2010. Answer parts (a) through (d). X H X H X H
1921-1930 18 1951-1960,4 18 1981-1990.7 19
1931-1940 20 1961-1970,5 22 1991-2000,8 20
1941-1950 37 1971-1980, 6 36 2001-2010,9 35

Required:
Find a sinusoidal function of the form y A sin (ωx- φ) + B that models the data

Two groups of students were asked how many hours they spent reading each day. the table below shows the numbers for each group: group a 1 2 1 1 3 3 2 2 3 group b 3 2 3 2 2 2 1 1 2 based on the table, which of the following is true? the interquartile range for group a students is 0.5 less than the interquartile range for group b students. the interquartile range for group a students is equal to the interquartile range for group b students. the interquartile range for group a employees is 0.5 more than to the interquartile range for group b students. the interquartile range for group a employees is 1 more than the interquartile range for group b students.