probability rules assignment
Students were surveyed on the number of siblings they have. The following probability model was created from the results. What is the probability that a randomly selected student does not have 0 siblings? Enter your answer as a decimal rounded to the thousandths place.
0.777
The spinner shown is divided into 3 equal sections. The spinner is spun 2 times. A partially completed probability model is shown for the number of times the spinner lands on blue. Find each probability. Note that landing on green, then blue is considered different from landing on blue, then green.
P(0 blue) = 4/9 P(1 blue) = 4/9 P(2 blue) = 1/9
A researcher observed all the cars in a parking lot and determined that 53% were Japanese made, 37% were US made, and the remaining cars were made in other countries. A partially completed probability model is shown for randomly selecting one car from the parking lot. Find each probability.
P(Japan) = 0.53 P(US) = 0.37 P(other) = 0.10
Students were surveyed on the number of siblings they have. The following probability model was created from the results. What is the probability that a randomly selected student has at least 2 siblings? Enter your answer as a decimal rounded to the thousandths place.
P(at least 2 siblings) = 0.245
The spinner shown is divided into 4 equal sections. The spinner is spun 1 time. A partially completed probability model is shown for spinning the spinner one time. Find each probability.
P(red) = 0.25 P(blue) = 0.25 P(green) = 0.25 P(yellow) = 0.25
The probability model shows the proportion of students at a school who passed the exams for the listed subjects. Which statement is true about the model provided?
The probability model is not valid because the sum of the probabilities is not 1.
The distribution of marshmallows in a box of cereal is given in the probability model. Determine the probability that a randomly selected marshmallow will be a rainbow shape. Enter your answer as a decimal rounded to the hundredths place.
0.20
The distribution of AP® Statistics scores for the 2018 exam is listed in the table. To pass the exam, a student must get a score of at least 3. What is the probability that a randomly selected student did not pass the exam?
1-0.646
For your art history test, you have to write a compare-contrast essay about 2 of 5 artists who will be randomly chosen for you on test day. The artists are Michelangelo, Raphael, Donatello, Leonardo da Vinci, and Salvador Dali. Create a probability model and use it to find the probability of randomly selecting Michelangelo and Leonardo da Vinci.
1/10