Chapter 3: Q.103 (page 227)
What is the probability that a randomly selected senator is a Democrat and up for reelection in November 2016?
Short Answer
The probability is
Chapter 3: Q.103 (page 227)
What is the probability that a randomly selected senator is a Democrat and up for reelection in November 2016?
The probability is
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Get started for freeUse the following information to answer the next two exercises. You see a game at a local fair. You have to throw a dart at a color wheel. Each section on the color wheel is equal in area.
Let B = the event of landing on blue.
Let R = the event of landing on red.
Let G = the event of landing on green.
Let Y = the event of landing on yellow.
If you land on Y, you get the biggest prize. Find P(Y).
United Blood Services is a blood bank that serves more than hospitals in states. According to their website, a person with type O blood and a negative Rh factor (Rh-) can donate blood to any person with any blood type. Their data show that of people have type O blood and of people haveRh- factor; of people have type O or Rh- factor.
a. Find the probability that a person has both typeO blood and the Rh- factor.
b. Find the probability that a person does NOT have both type O blood and the Rh- factor
What is the probability of rolling a prime number of dots with a fair, six-sided die numbered one through six?
A school has 200 seniors of whom 140 will be going to college next year. Forty will be going directly to work. The remainder are taking a gap year. Fifty of the seniors going to college play sports. Thirty of the seniors going directly to work play sports. Five of the seniors taking a gap year play sports. What is the probability that a senior is going to college and plays sports?
In a bag, there are six red marbles and four green marbles. The red marbles are marked with the numbers 1, 2, 3,4, 5, and 6. The green marbles are marked with the numbers 1, 2, 3, and 4.
• R = a red marble
• G = a green marble
• O = an odd-numbered marble
• The sample space is S = {R1, R2, R3, R4, R5, R6, G1, G2, G3, G4}.
S has ten outcomes. What is P(G AND O)?
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