Brian is undecided as to whether to take a French course or a Russian course. He estimates that his probability of receiving an A grade would be 1/3 in a French course and 2/5 in a Russian course. If Brain decides to base his decision on the flip of a fair coin, what is the probability that he gets an A in Russian?

A construction company wants to understand how important safety helmets are on their worksite. They find that around 73% of their workers wear safety helmets regularly. Of those who wear these helmets, only 14% report any head injuries; for those who do not wear them regularly, 52% report head injuries.  What is the probability that a person who has reported a head injury was wearing a helmet?

Clean Fossil Fuels. In the article, “Squeaky Clean Fossil Fuels” (New Scientist, Vol. 186, No. 2497, p. 26), F. Pearce reported on the benefits of using clean fossil fuels that release no carbon dioxide (CO2), helping to reduce the threat of global warming. One technique of slowing down global warming caused by CO2 is to bury the CO2 underground in old oil or gas wells, coal mines, or porous rocks filled with salt water. Global estimates are that 11,000 billion tonnes of CO2 could be disposed of underground, several times more than the likely emissions of CO2 from burning fossil fuels in the coming century. This could give the world extra time to give up its reliance on fossil fuels. The following bar chart shows the distribution of space available to bury CO2 gas underground. a. Explain why the break is found in the third bar. b. Why was the graph constructed with a broken bar?

In a remote jungle village the probability of a child contracting malaria is .45 the probability of contracting measles is.65 and the probability of contracting both is .20 What is the probability of a child contracting malaria or measles?

What is the probability of rolling two dice and having either a sum of 4 or having the same value on both dice? Express your answer as a decimal probability to two decimal places (not a percentage probability).

Approximately 18% of shoppers used cellphones to look for deals. THe probability of making a purchase was 0.45 if a person used a cell phone to shop. For a randomly selected shoppers, what is the probability that the person used a cell phone and made a purchase?

It did not answer the questions since it was asking What is the probability that Bill was accepted at College Y given that he was accepted at College X?

There was a baseball game between Oscar and Gabe. The chance of Oscar winning is 3/5 (60%). The chance of Gabe winning is 2/5 (40%). This game wasn't a one game competition. It's the best of 5 series. This means the first person to win 3 games is the overall champion. What's the probability (% is best) that Oscar is the champion? Don't answer this question as Oscar with a 60% chance and Gabe as a 40% chance. Also, don’t use the equation for finding multiple events for probability.

According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that the Tampa Bay Buccaneers will score a touchdown on their opening drive is 0.14.  The probability that the Bucs will both score a touchdown on their opening drive and have 3 or more sacks in the game is 0.19.  The is the probability that they will either score a touchdown on the opening drive or have 3 or more sacks in the game is 0.39.  What is the probability that the Bucs will have 3 or more sacks in the game? Answer in decimal form.  Round to two decimal places as needed.

According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that the Tampa Bay Buccaneers will score a touchdown on their opening drive is 0.03.  The probability that the Bucs will both score a touchdown on their opening drive and have 3 or more sacks in the game is 0.22.  The is the probability that they will either score a touchdown on the opening drive or have 3 or more sacks in the game is 0.37.  What is the probability that the Bucs will have 3 or more sacks in the game?