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Introducing new Paper mode
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10 questions
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- Fill in the BlankPlease save your changes before editing any questions.
Alvin rolls a fair 6-sided die.
What is P(roll greater than 6)?
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Ahmed spins the spinner shown below once. Each sector shown has an equal area.
What is P(shaded area)?
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Adam flips a fair coin.
What is P(Heads)?
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Harry can't figure out what to eat. He is going to randomly select a piece of fruit from his pantry. There are 4 apples and 5 bananas in his kitchen.
What is P(select an apple)?
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Rafina roll a 6-sided die.
What is P(roll less than 4)?
- Multiple ChoicePlease save your changes before editing any questions.
Let X and Y be the following sets:
P(X) = {5, 10, 15}
P(Y) = {3, 6, 9, 12, 15}
Which of the following is the set X U Y?
{5, 10, 15}
{3, 6, 9, 12, 15}
{}
{3, 5, 6, 9, 10, 12, 15}
- Multiple ChoicePlease save your changes before editing any questions.
Let X and Y be the following sets:
X = {121, 144, 169}
Y = {11, 12, 13, 121, 144, 169}
Which of the following is the set X ∩ Y?
{121, 144,169}
{11, 12, 13, 121, 144, 169}
{}
{11, 12, 13}
- Multiple ChoicePlease save your changes before editing any questions.
A car salesman has noted that the probability that the dealership sells a car on a Saturday morning is 0.30. Then the probability of the dealership not selling a car on Saturday morning is 0.70.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
Three events occur with probabilities P(E1) = 0.35, P(E2) = 0.15, P(E3) = 0.40. If the event B occurs, the probability becomes P(E1|B) = 0.25, P(B) = 0.30. Calculate P(E1 or B).
0.075
0.575
0.021
0.475
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Drake Marketing and Promotions has randomly surveyed 200 men who watch professional sports. The men were separated according to their educational level (college degree or not) and whether they prefer the NBA or the National Football League (NFL). The results of the survey are shown:
What is the probability that a randomly selected participant prefers NFL?