There is a 40% chance that the economy will be good next year and a 60% chance that it will be bad. If the economy is good, there is a 50% chance of a bull market, a 30% chance of a normal market, and a 20% chance of a bear market. If the economy is bad, there is a 20% chance of a bull market, a 30% chance of a normal market, and a 50% chance of a bear market. What is the joint probability of a good economy and a bull market（）
A: 12%.
B: 20%.
C: 32%.
A: 12%.
B: 20%.
C: 32%.
举一反三
- In ___________, there is more supply than demand, buyers are at an advantage and prices are low. A: buyer's market B: seller's market C: bull market D: bear market
- The chance of finding satisfactory( )in this market draws many customers here. A: businesses B: bubbles C: barrels D: bargains
- The economy and job market are so good that more graduates are determined to find the best job.
- If you could see any chance to reduce the price to our ________, there is a possibility to conclude the business. A: approval B: level C: equest D: market
- 1、There is a good chance (that) …