Mathematics
Senior High
Solved
なんで赤線のようになるのかが
分かりません💦
123 (1)
X
0=
P
(2) 母平均m, 母標準偏差のは
m=1.. +2.
2
10
+4
24
20-132
=
5
1
2 3
2
3
4
10 10 10
3
10
12
(3) E(X) = m = =
5
4
+3.
33
12\2
= √3/³²-(12)√²
4
10
=
√(1³. 20 +2²1 +3² +4² · 10-m
12
3
+22.
10
+32.
100円
+42.
5
OF
4
1
10
1
10
√21 √21
• (X) = 1/2/20
5
=
4
10
at
1
$a
081
2
m²
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