Binomial Random Variables

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A survey found that 25% of pet owners had their pets bathed professionally rather than do it themselves. If 18 pet owners are randomly selected, find the probability that exactly 5 people have their pets bathed professionally
3.42
1.03
0.072
0.199
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When rolling two dice, the probability of rolling doubles is ⅙. Suppose that a game player rolls the dice five times, hoping to roll doubles. What is the probability the player gets doubles less than three times in 5 attempts?
0.161
0.965
0.015
0.997
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pedro drives the same route Monday through Friday. His route includes one traffic light. According to local data, there is a 55% probability that the light will be red when he arrives at the intersection on a random selected workday. Suppose we choose 10 of Pedro's workdays at random and let Y = the number of time that he is at the red light. Which of the following represents P(Y=8)?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An algebra 2 test has 6 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 6 questions, what is the probability that you get exactly 3 questions correct?
0.962
0.132
0.831
0.250
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is NOT a requirement for the Binomial distribution?
All trials must be independent.
Events are binary (success or failure)
All trials are dependent on each other.
There is a set # of trials
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When rolling a fair die 100 times, what is the probability of rolling a "4" exactly 25 times? Is this an example of binomial or geometric?
binomial
geometric
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
X ~ B(20, 0.5)
Find P(X ≥ 7)
0.07
0.13
0.87
0.94
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