[問題] 題目看不懂
我做到一個題組 初看很容易
後來卻找不到選項選答案 看來我是誤解題目的意思了
但我卻想不出其他的解讀方法
所以上來請教各位 請大家幫我這個忙 謝謝
題目如下:
In a recent survey about capital gains tax, 60% of the respondents said that
they support capital gains tax. Female comprised 40% in the sample, and of
the females, 40% supported capital gains tax.
1. What is the probability that a randomly selected person is a female and
capital gains taxsupporter?
A) 0.10 B) 0.16 C) 0.57 D) 0.83
2. Suppose we select a female respondent, what is the probability that she
is not a capital gains tax supporter?
A) 0.2 B) 0.3 C) 0.6 D) 0.8
[其實我剛剛打題目時好像突然恍然大悟了一會兒
然後算出第一題: 0.4*0.4=0.16
第二題: 0.24/0.4=0.6
但不知道跟各位的答案是否相同 所以還是要麻煩大家幫我解惑 謝謝]
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