Linear Regression with Random Data Set

GeoGebra Commands & Parameters

1. Random(1, 20) → A2
2. Random(1, 20) → A1
3. Random(1, 20) → A3
4. Random(1, 20) → A4
5. Random(1, 20) → A5
6. Random(1, 20) → A6
7. Random(1, 20) → A7
8. Random(1, 20) → A8
9. Random(1, 20) → A9
10. Random(1, 20) → A10
11. Random(1, 20) → A11
12. Random(1, 20) → A12
13. Random(1, 20) → A13
14. Random(1, 20) → A14
15. Random(1, 20) → A15
16. Random(1, 20) → A16
17. Random(1, 20) → A17
18. Random(1, 20) → A18
19. Random(1, 20) → A19
20. Random(1, 20) → A20
21. Random(-2, 2) → slope_1
22. Line(U, V) → line_{guess}
23. Line(A, x = 0) → a
24. Line(B, x = 0) → b
25. Line(C, x = 0) → c
26. Line(D, x = 0) → d
27. Line(E, x = 0) → e
28. Line(F, x = 0) → f
29. Line(G, x = 0) → g
30. Line(H, x = 0) → h
31. Line(I, x = 0) → i
32. Line(J, x = 0) → j
33. Line(K, x = 0) → k
34. Line(L, x = 0) → l
35. Line(M, x = 0) → m
36. Line(N, x = 0) → n
37. Line(NP, x = 0) → np
38. Line(O, x = 0) → p
39. Line(P, x = 0) → q
40. Line(R, x = 0) → s
41. Line(S, x = 0) → t
42. Intersect(line_{guess}, a) → A'
43. Intersect(line_{guess}, b) → B'
44. Intersect(line_{guess}, c) → C'
45. Intersect(line_{guess}, d) → D'
46. Intersect(line_{guess}, e) → E'
47. Intersect(line_{guess}, f) → F'
48. Intersect(line_{guess}, g) → G'
49. Intersect(line_{guess}, h) → H'
50. Intersect(line_{guess}, i) → I'
51. Intersect(line_{guess}, j) → J'
52. Intersect(line_{guess}, k) → K'
53. Intersect(line_{guess}, l) → L'
54. Intersect(line_{guess}, m) → M'
55. Intersect(line_{guess}, n) → N'
56. Intersect(line_{guess}, np) → NP'
57. Intersect(line_{guess}, p) → O'
58. Intersect(line_{guess}, q) → P'
59. Intersect(line_{guess}, s) → R'
60. Intersect(line_{guess}, t) → S'
61. Line(Q, x = 0) → r
62. Intersect(line_{guess}, r) → Q'
63. Polygon(A', A, 4) → poly1, a_1, b_1, c_1, d_1, T, W
64. Polygon(B', B, 4) → poly2, e_1, f_1, g_1, h_1, Z, A_1
65. Polygon(D', D, 4) → poly3, i_1, j_1, k_1, l_1, B_1, C_1
66. Polygon(E', E, 4) → poly4, m_1, n_1, p_1, q_1, D_1, E_1
67. Polygon(C', C, 4) → poly5, r_1, s_1, t_1, a_2, F_1, G_1
68. Polygon(F', F, 4) → poly6, b_2, c_2, d_2, e_2, H_1, I_1
69. Polygon(G', G, 4) → poly7, f_2, g_2, h_2, i_2, J_1, K_1
70. Polygon(H', H, 4) → poly8, j_2, k_2, l_2, m_2, L_1, M_1
71. Polygon(I', I, 4) → poly9, n_2, p_2, q_2, r_2, N_1, O_1
72. Polygon(J', J, 4) → poly10, s_2, t_2, a_3, b_3, P_1, Q_1
73. Polygon(K', K, 4) → poly11, c_3, d_3, e_3, f_3, R_1, S_1
74. Polygon(L', L, 4) → poly12, g_3, h_3, i_3, j_3, T_1, U_1
75. Polygon(M', M, 4) → poly13, k_3, l_3, m_3, n_3, V_1, W_1
76. Polygon(N', N, 4) → poly14, p_3, q_3, r_3, s_3, Z_1, A_2
77. Polygon(NP', NP, 4) → poly15, t_3, a_4, b_4, c_4, B_2, C_2
78. Polygon(P', P, 4) → poly16, d_4, e_4, f_4, g_4, D_2, E_2
79. Polygon(O', O, 4) → poly17, h_4, i_4, j_4, k_4, F_2, G_2
80. Polygon(Q', Q, 4) → poly18, l_4, m_4, n_4, p_4, H_2, I_2
81. Polygon(R', R, 4) → poly19, q_4, r_4, s_4, t_4, J_2, K_2
82. Polygon(S', S, 4) → poly20, a_5, b_5, c_5, d_5, L_2, M_2
83. Vector((x(A), 0), (x(A), y(A) - y(A'))) → V_A
84. Vector((x(B), 0), (x(B), y(B) - y(B'))) → V_B
85. Vector((x(C), 0), (x(C), y(C) - y(C'))) → V_C
86. Vector((x(D), 0), (x(D), y(D) - y(D'))) → V_D
87. Vector((x(E), 0), (x(E), y(E) - y(E'))) → V_E
88. Vector((x(F), 0), (x(F), y(F) - y(F'))) → V_F
89. Vector((x(G), 0), (x(G), y(G) - y(G'))) → V_G
90. Vector((x(H), 0), (x(H), y(H) - y(H'))) → V_H
91. Vector((x(I), 0), (x(I), y(I) - y(I'))) → V_I
92. Vector((x(J), 0), (x(J), y(J) - y(J'))) → V_J
93. Vector((x(K), 0), (x(K), y(K) - y(K'))) → V_K
94. Vector((x(L), 0), (x(L), y(L) - y(L'))) → V_L
95. Vector((x(M), 0), (x(M), y(M) - y(M'))) → V_M
96. Vector((x(N), 0), (x(N), y(N) - y(N'))) → V_N
97. Vector((x(NP), 0), (x(NP), y(NP) - y(NP'))) → V_{NP}
98. Vector((x(P), 0), (x(P), y(P) - y(P'))) → V_P
99. Vector((x(Q), 0), (x(Q), y(Q) - y(Q'))) → V_Q
100. Vector((x(R), 0), (x(R), y(R) - y(R'))) → V_R
101. Vector((x(O), 0), (x(O), y(O) - y(O'))) → V_O
102. Vector((x(S), 0), (x(S), y(S) - y(S'))) → V_S
103. RSquare(data, line_{guess}) → Strength
104. SampleSD(list_y) → SD_y
105. Median(list_x) → Median_x
106. FitLineY(data) → line_{actual}
107. Circle(((Median_x * 1.5), (2 * SD_y)), (Strength * Max[list_y] / 6)) → CorrelationCircle
108. Circle(((Median_x * 1.5), (2 * SD_y)), (Strength * Max[list_y] / 6)) → CorrelationCircle_1
109. Random(-10, 10) → yint_1
110. Vector((Min[list_x] - 2, 0), (Min[list_x] - 2, over)) → Vector_{over}
111. Vector((Min[list_x] - 2, 0), (Min[list_x] - 2, (-under))) → Vector_{under}
112. Text(((Strength * 100) * "%"), (Max[list_x] + 2, 0)) → text1