Combinations with repetition + probability - practice problems
Number of problems found: 5
- STRESSED word
Each letter in STRESSED is printed on identical cards, one letter per card, and assembled in random order. Calculate the probability that the cards spell DESSERTS when assembled.
- Boys and girls
There are 11 boys and 18 girls in the classroom. Three pupils will answer. What is the probability that two boys will be among them?
- Families 2
Seven hundred twenty-nine families are having six children each. The probability of a girl is 1/3, and the probability of a boy is 2/3. Find the number of families having two girls and four boys.
- Three reds
What is the probability that when choosing 3 carats from seven carats, all 3 reds will be red?
From a set of 32 cards, we randomly pull out three cards. What is the probability that it will be seven kings and ace?
See also our combinations with repetition calculator. Combinations with repetition - practice problems. Probability - practice problems.