
Probability and Statistics Challenge
Quiz
•
Others
•
8th Grade
•
Practice Problem
•
Hard
Oluwasegun S Akinniyi
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the probability of rolling a sum of 7 with two dice?
1/4
1/8
1/12
1/6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the mean of a data set is 20 and the sum of the numbers is 100, how many numbers are in the data set?
6
10
4
5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a class of 30 students, 18 are girls. What is the probability of randomly selecting a boy?
0.5
0.4
0.6
0.3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the median of the following data set: 3, 7, 9, 12, 15?
7
12
15
9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a bag contains 4 red, 5 blue, and 6 green marbles, what is the probability of picking a blue marble?
3/4
2/5
1/2
1/3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A survey shows that 60% of students prefer online classes. If 50 students are surveyed, how many prefer online classes?
40
50
20
30
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mode of the following data set: 2, 3, 4, 4, 5, 5, 5, 6?
6
5
3
4
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