🌅 🌅多吉旺珍🌞🌞 · 2020年07月28日
问题如下：
Which of the following is a continuous random variable?
选项：
A.
The value of a futures contract quoted in increments of $0.05
B.
The total number of heads recorded in 1 million tosses of a coin
C.
The rate of return on a diversified portfolio of stocks over a three-month period
解释：
C is correct.
The rate of return is a random variable because the future outcomes are uncertain, and it is continuous because it can take on an unlimited number of outcomes.
c选项该如何理解 为什么是连续随机NO.PZ2017092702000089 问题如下 Whiof the following is a continuous ranm variable? A.The value of a futures contraquotein increments of $0.05 B.The totnumber of hea recorin 1 million tosses of a coin C.The rate of return on a versifieportfolio of stocks over a three-month perio C is correct. The rate of return is a ranm variable because the future outcomes are uncertain, anit is continuous because it ctake on unlimitenumber of outcomes.收益率是一个随机变量，因为未来的结果是不确定且连续的。 A是什么意思，为什么不对？
NO.PZ2017092702000089 The totnumber of hea recorin 1 million tosses of a coin The rate of return on a versifieportfolio of stocks over a three-month perio C is correct. The rate of return is a ranm variable because the future outcomes are uncertain, anit is continuous because it ctake on unlimitenumber of outcomes. 收益率是一个随机变量，因为未来的结果是不确定且连续的。 可以一下这道题每句话的意思么，英文有点不太完全理解
NO.PZ2017092702000089 The totnumber of hea recorin 1 million tosses of a coin The rate of return on a versifieportfolio of stocks over a three-month perio C is correct. The rate of return is a ranm variable because the future outcomes are uncertain, anit is continuous because it ctake on unlimitenumber of outcomes.连续随机变量的含义是什么呢谢谢
c如果问的是股票价格，就不是连续的分布了？因为股价有最小变动幅度➕涨跌幅限制？
