Tema
Q:
1 Homework
The graph to the right is the uniform density function for a friend who is \( x \) minutes late. Find the probability that the friend is at least 20 minutes late.
The probability that the friend is at least 20 minutes late is
(Type an integer or a decimal. Round to three decimal places as needed.)
Q:
A jar contains 4 purple, 5 orange and 7 yellow
jellybeans. Find the probability of selecting a purple
then an orange jellybean without replacement.
Q:
The graph to the right is the uniform probability density function for a friend who is \( \times \) minutes late.
(a) Find the probability that the friend is between 15 and 20 minutes late.
(b) There is a \( 50 \% \) probability the friend will arrive within how many minutes?
(a) The probability that the friend is between 15 and 20 minutes late is
(Type an integer or a decimal. Round to three decimal places as needed)
Q:
A jar contains 3 purple, 7 pink and 6 yellow jellybeans.
Find the probability of selecting a yellow then a purple
jellybean without replacement.
Q:
A jar contains 9 purple, 2 red and 5 blue jellybeans.
Find the probability of selecting a blue then a red
jellybean without replacement.
Q:
Jasmine and Richard are both hoping to go to a concert on Saturday.
The probability that Jasmine will be able to go is 0.5 (P1).
The probability that Richard will be able to go is 0.7 (P2).
(a) Complete the tree diagram.
Q:
(b) Hence, calculate the probability that Maya passes but Ryan does not.
Q:
Maya and Ryan are both doing exams tomorrow.
- The probability that Maya will pass is \( 0.5(\mathrm{P} 1) \).
- The probability that Ryan will pass is \( 0.4(\mathrm{P} 2) \).
(a) Complete the tree diagram.
Q:
Maya and Ryan are both doing exams tomorrow.
- The probability that Maya will pass is \( 0.5(\mathrm{P} 1) \).
- The probability that Ryan will pass is \( 0.4(\mathrm{P} 2) \).
(a) Complete the tree diagram.
Q:
Maya and Ryan are both doing exams tomorrow.
- The probability that Maya will pass is \( 0.5(\mathrm{P} 1) \).
- The probability that Ryan will pass is \( 0.4(\mathrm{P} 2) \).
(a) Complete the tree diagram.
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