In a STA215 class there are four students who are sometimes late from class. P(Matt on time)=.9, P(Zach on time)=.8 P(Greg on time)=.6, P(Alex on time)=.5 What is the probability that at least one of them is late from class? Write your answer as a decimal rounded to 3 digits.

Is the answer 0.5 or 0.05076. Please show work If Missy is late for school one particular day of the week, the probability she arrives on time the next day is 0.8. If she arrives on time one day, the probability she arrives late the following day is 0.3. What is the probability she was late on Thursday?

Suppose that 68% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal rounded to 4 places.

The ABC company manufactures toy robots. About 1 toy robot per 100 does not work. You purchase 35 ABC toy robots. What is the probability that exactly 4 do not work   Answer in 4 decimal place

You have relatives coming for dinner this weekend.  The probability that your uncle Josiah will show up is 0.69.  What is the probability that uncle Josiah doesn't show up?  Enter your answer as a decimal, rounded to three decimal places.

Suppose that the proportion of people who become infected with a disease after contact with a particular parasite is 0.45. If 19 people come in contact with the parasite, what is the probability that exactly 4 of them will become infected? Write only a number as your answer and round to 4 decimal places. Your Answer: Answer Previous Page Next Page 4 Page 4 of 10