已知随机变量 [tex=0.857x1.0]KGogyvwDAIJf/iL0H/9wjg==[/tex] 的数学期望为 [tex=2.357x1.357]y0JP40XwxAEl4j7GgRfsFw==[/tex],则必有 未知类型:{'options': ['[tex=7.714x1.714]oibOEPzqOMutspJWiy6hN+WRBYW6Q9mC1nfHGebCVVvU3BwCgRVfZinAxEsBYU+ZM5cl4XUfVknN7Ocr69Rm9w==[/tex]', '[tex=7.929x1.714]oibOEPzqOMutspJWiy6hN5EIcFShYVaofjh9NFZGe80NweBerPBcgNK/HCwrPdIj8tom6N8tBBO/OQ0c/hGGxQ==[/tex]', '[tex=7.929x1.714]oibOEPzqOMutspJWiy6hN5dsg5210BufEK1kBr7WevT/i5jPb5wejR4TQ9lhReHVrC6uIAUKcS4Zu3zB0dMtOQ==[/tex]', '[tex=9.286x1.714]oibOEPzqOMutspJWiy6hN5WI5gYkjecMPG71Ld+6aghjeS6b19C5Jrw0ytUZlC39Oipy/13MdhtSJRmmXBLFpA==[/tex]'], 'type': 102}
已知随机变量 [tex=0.857x1.0]KGogyvwDAIJf/iL0H/9wjg==[/tex] 的数学期望为 [tex=2.357x1.357]y0JP40XwxAEl4j7GgRfsFw==[/tex],则必有 未知类型:{'options': ['[tex=7.714x1.714]oibOEPzqOMutspJWiy6hN+WRBYW6Q9mC1nfHGebCVVvU3BwCgRVfZinAxEsBYU+ZM5cl4XUfVknN7Ocr69Rm9w==[/tex]', '[tex=7.929x1.714]oibOEPzqOMutspJWiy6hN5EIcFShYVaofjh9NFZGe80NweBerPBcgNK/HCwrPdIj8tom6N8tBBO/OQ0c/hGGxQ==[/tex]', '[tex=7.929x1.714]oibOEPzqOMutspJWiy6hN5dsg5210BufEK1kBr7WevT/i5jPb5wejR4TQ9lhReHVrC6uIAUKcS4Zu3zB0dMtOQ==[/tex]', '[tex=9.286x1.714]oibOEPzqOMutspJWiy6hN5WI5gYkjecMPG71Ld+6aghjeS6b19C5Jrw0ytUZlC39Oipy/13MdhtSJRmmXBLFpA==[/tex]'], 'type': 102}
1