The binomial distribution: check 1
Difficulty: ★★☆Maths4U Original · Short practice
Independent trials have constant success probability \(\frac{2}{5}\). Let X count the successes in 5 trials.
Find P(X=2).
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
The binomial distribution: review variant 1
Difficulty: ★★☆Maths4U Original · Short practice
Independent trials have constant success probability \(\frac{1}{2}\). Let X count the successes in 6 trials.
Find P(X=2).
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
The binomial distribution: check 2
Difficulty: ★★☆Maths4U Original · Short practice
Independent trials have constant success probability \(\frac{1}{2}\). Let X count the successes in 6 trials.
Find P(X at least 2).
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
The binomial distribution: review variant 2
Difficulty: ★★☆Maths4U Original · Short practice
Independent trials have constant success probability \(\frac{1}{5}\). Let X count the successes in 7 trials.
Find P(X at least 2).
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
The binomial distribution: check 3
Difficulty: ★★☆Maths4U Original · Short practice
Independent trials have constant success probability \(\frac{1}{5}\). Let X count the successes in 7 trials.
Find E(X).
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
The binomial distribution: review variant 3
Difficulty: ★★☆Maths4U Original · Short practice
Independent trials have constant success probability \(\frac{3}{10}\). Let X count the successes in 8 trials.
Find E(X).
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
The binomial distribution: check 4
Difficulty: ★★☆Maths4U Original · Short practice
Independent trials have constant success probability \(\frac{3}{10}\). Let X count the successes in 8 trials.
Find Var(X).
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.
The binomial distribution: review variant 4
Difficulty: ★★☆Maths4U Original · Short practice
Independent trials have constant success probability \(\frac{2}{5}\). Let X count the successes in 9 trials.
Find Var(X).
Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.