IB Applications Probability
Quiz
•
Mathematics
•
11th - 12th Grade
•
Practice Problem
•
Hard
Barbara White
FREE Resource
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11 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A machine fills plastic bottles with mineral water. The volume of mineral water that the machine pours into each bottle follows a normal distribution with the mean of 498ml and a standard deviation of 3.4ml. Each bottle has a maximum capacity of 506ml. On the label of each bottle is printed the statement: Contents 500ml.
Find the probability that a bottle chosen by random has a volume less than 500 ml
0.278
-0.278
0.722
0.498
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Is the distribution below a probability distribution? Why or why not?
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
68% of the marks in a test are between 51 and 64
Assuming this data is normally distributed, what are the mean and standard deviation?
Mean = 57
S.D. = 6.5
Mean = 57
S.D. = 7
Mean = 57.5
S.D. = 6.5
Mean = 57.5
S.D. = 13
4.
MULTIPLE CHOICE QUESTION
3 mins • 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
3 mins • 1 pt
The American Red Cross says that about 11% of the U.S. population has Type B blood. A blood drive is being held at your school. What is the probability that at least 2 of the first 10 blood donors has Type B blood?
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Find the mean of a binomial distribution with n=50 and p=0.4
50
4
20
10
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Find the variance of a binomial distribution with 50 trials and p= 0.4
12
15
10
20
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