表から集合の要素の個数を読み取ろう。

二つの条件A,Bに関する人数の表を見て、空欄の人数を計算しよう。

A

\overline{A}

合計

合計

B

\overline{B}

100

$A$だけの人は何人？

$B$だけの人は何人？

答えの表示・非表示

(単位；人)

A = Point(yAxis)
B = Point(yAxis)
C = Point(yAxis)
D = Intersect(xAxis, yAxis)
E = Point(xAxis)
F = Point(xAxis)
G = Point(xAxis)
H = Point(xAxis)
I = (4, 1)
J = (4, 2)
K = (4, 3)
L = (4, 4)
M = (3, 4)
N = (2, 4)
O = (1, 4)
P = (1, 3)
poly1, p, o, l, k = Polygon(P, O, L, K)
poly2, a, p_1, e, d = Polygon(A, P, E, D)
b = Segment(O, E)
c = Segment(N, F)
f = Segment(M, G)
g = Segment(L, H)
h = Segment(O, L)
i = Segment(A, K)
j = Segment(B, J)
m = Segment(C, I)
n = Segment(D, H)
aa = Random(10, 25)
bb = Random(15, 30)
cc = Random(25, 35)
dd: 100 - aa - bb - cc
ab: aa + bb
ac: aa + cc
text8: "" + aa + ""
text9: "" + dd + ""
text11: "" + ac + ""
text13: "Aだけは" + cc + "人、Bだけは" + bb + "人。"
u = false