Mathematics, 31.03.2021 01:00 hernan99961
Alma is estimating the proportion of students in her school district who, in the past month, read at least 1 book. From a random sample of 50 students, she found that 32 students read at least 1 book last month. Assuming all conditions for Inference are met, which of the following defines a 90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month?
A. 32 +1.645,β(32)(18/50)
B. 32+ 1.9620β β(32)(18/50)
C. 0.64 + 1.282β(0.64 )(0.36)/ 50
D. 0.64 + 1.645β(0.64 )(0.36)/ 50
E. 0.64 + 1.96β(0.64 )(0.36)/ 50
Answers: 3
Mathematics, 21.06.2019 19:00
What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)
Answers: 1
Mathematics, 21.06.2019 21:00
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x β 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, β8) included in the solution area for the system? justify your answer mathematically. (4 points)
Answers: 3
Mathematics, 21.06.2019 21:00
Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12
Answers: 1
Alma is estimating the proportion of students in her school district who, in the past month, read at...
Social Studies, 25.02.2021 01:00
Mathematics, 25.02.2021 01:00
English, 25.02.2021 01:00
English, 25.02.2021 01:00
Biology, 25.02.2021 01:00
Mathematics, 25.02.2021 01:00
English, 25.02.2021 01:00
English, 25.02.2021 01:00
Mathematics, 25.02.2021 01:00
Chemistry, 25.02.2021 01:00
Chemistry, 25.02.2021 01:00
Mathematics, 25.02.2021 01:00