题目

Have you ever heard the phrase, “Love is blind”? If so, you are already   21   with a type of mistake in our attempts to understand others: halo effects. This type of mistake    22   to the fact that once we form an overall impression of somebody, it could have strong effects on our   23     of his personality.   24  , halo effects are both common and powerful. For example, most organizations contain one or more “superstars”--- people who have earned the reputation for being unusually   25    and capable. Once they have gained such a “halo”, everything they d近年空气质量逐步雾霾天气现象增多，大气污染危害加重，大气污染可引起心悸，呼吸困难等心肺疾病，为了解某市心肺疾病是否与性别有关，在某医院随机的对入院50人进行了问卷调查得到了如下的列联表：患心肺疾病不患心肺疾病合计男5女10合计50已知在全部50人中随机抽取1人，抽到患心肺疾病的人的概率为.（1）请将上面的列联表补充完整，并判断是否有99.5%的把握认为患心肺疾病与性别有关？说明你的理由；（2）已知在患心肺疾病的10位女性中，有3位又患胃病，现在从患心肺疾病的10位女性中，选出3名进行其他方面的排查，记选出患胃病的女性人数为，求的分布列、数学期望及方差，下面的临界值表供参考：0.150．100.050.0250.0100.0050.0012.0722.7063.8415.0246.6357.87910.828（参考公式，其中.）