- 1
-
试述算术平均数的运算性质及优缺点。附:正态分布表(曲线下的面积与纵高)
Z
Y
P
Z
Y
P
.25
.26
.27
.28
.29
.38667
.38568
.38466
.38361
.38251
.09871
.10257
.10642
.11026
.11409
1.50
1.51
1.52
1.53
1.54
.12952
.12758
.12566
.12376
.12188
.43319
.43448
.43574
.43699
.43822
- 1
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Ⅱ型错误
- 1
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心理测验