1. Abigail plays a game in which she spins a spinner over and over again. The spinner has 4 equally sized sections labeled 1 thr
ough 4. Spinning a 2 eight times means the game is over. Abigail uses a uniform probability model to predict the number of times the spinner will be spun before the number 2 appears 8 times.
What is Abigail's prediction for the number of total spins before the number 2 appears 8 times?
32 spins
16 spins
8 spins
4 spins
2. A computer is used to generate passwords made up of numbers 0 through 9 and uppercase letters. The computer generates 500 passwords one character at a time.
A uniform probability model is used to predict the first character in the password.
What is the prediction for the number of passwords in which the first character is a number?
Round your answer to the nearest whole number.
69 passwords
139 passwords
192 passwords
292 passwords
3. Samuel uses a uniform probability model for an experiment using a deck of 30 cards. There are 6 blue cards, 6 red cards, 6 green cards, 6 yellow cards, and 6 brown cards in the deck. Cards will be drawn one at a time and then replaced in the deck before another card is drawn.
He uses the probability model to determine the probability of drawing a yellow card or a blue card.
What is P(yellow or blue)?
Enter your answer as a simplified fraction in the box.
Answer:
4. What is the difference between a uniform and a non-uniform probability model?
Select from the drop-down menus to correctly complete the statements.
In a Choose... A NON-UNIFORM B UNIFORM
probability model, the probability of each outcome occurring is the same. In a
Choose... A NON- UNIFORM B UNIFORM
probability model, the probability of each outcome occurring is not the same.
5. A box contains 5 red markers, 6 blue markers, and 5 yellow markers.
What is known about the probability model for this situation?
Select all correct answers.
The probability model for this situation is non-uniform.
The probability model for this situation is uniform.
The probabilities of the individual outcomes are not the same.
The probabilities of the individual outcomes are the same.