
Understanding Binomial Variables

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard
Standards-aligned

Emma Peterson
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a binomial variable X defined as?
The sum of probabilities in n trials
The number of successes in n trials
The number of failures in n trials
The probability of success in a single trial
Tags
CCSS.HSS.MD.A.2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the expected value of a binomial variable X calculated?
As the sum of probabilities of all trials
As the product of n and the expected value of a Bernoulli variable
As the difference between successes and failures
As the square of the probability of success
Tags
CCSS.HSS.MD.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the expected value of a Bernoulli variable Y?
1 - p
0
p
n * p
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which property allows the calculation of variance for a binomial variable?
Sum of standard deviations
Difference of probabilities
Product of expected values
Sum of variances
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the variance of a Bernoulli variable Y?
p^2
1 - p
n * p
p(1 - p)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the variance of a binomial variable X expressed?
n * p^2
n * p * (1 - p)
p * (1 - p)
n^2 * p
Tags
CCSS.7.SP.C.6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example of free throws, what is the probability of success?
1.0
0.5
0.3
0.7
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