Mathematics, 06.09.2019 01:20 biggasi
Nineteen immigrants to the u. s. were asked how many years, to the nearest year, they have lived in the u. s. the data are as follows: 2; 5; 7; 2; 2; 10; 20; 15; 0; 7; 0; 20; 5; 12; 15; 12; 4; 5; 10.
data frequency relative frequency cumulative relative frequency
0 2 2/19 0.1053
2 3 3/19 0.2632
4 1 1/19 0.3158
5 3 3/19 0.4737
7 2 2/19 0.5789
10 2 2/19 0.6842
12 2 2/19 0.7895
15 1 1/19 0.8421
20 1 1/19 1.000
(a) fix the error in the table. explain how someone might have arrived at the incorrect number(s).
(b) explain what is wrong with the statement "47% of the people surveyed have lived in the u. s. for 5 years"
Answers: 3
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Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a. x2 − 4x − 7 = 0b. 4r2 + 11r − 3 = 0c. 3m2 + 7 = 0d. t2 + 2t + 1 = 0
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