5.21 The increase or decrease in the price of a stock between the beginning and the end of a trading 1 answer below »

5.21 The increase or decrease in the price of a stock between the beginning and the end of a trading day is assumed to be an equally likely random event. What is the probability that a stock will show an increase in its closing price on five consecutive days?
If the likelihood of a tagged order form is 0.1, what is the probability that there are fewer than three tagged order forms in the sample of four?