# Birth

Let's assume that the probability of the birth of a boy and a girl in the family is the same. What is the probability that in a family with five children, the youngest and oldest child is a boy?

Correct result:

p =  0.25

#### Solution:

$p_{1}=p_{2}=\dfrac{ 1 }{ 2 }=0.5 \ \\ \ \\ p=0.5 \cdot \ 1 \cdot \ 1 \cdot \ 1 \cdot \ 0.5=\dfrac{ 1 }{ 4 }=0.25$

We would be pleased if you find an error in the word problem, spelling mistakes, or inaccuracies and send it to us. Thank you!

Tips to related online calculators
Would you like to compute count of combinations?

## Next similar math problems:

• 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.
• Classroom
Of the 26 pupils in the classroom, 12 boys and 14 girls, four representatives are picked to the odds of being: a) all the girls b) three girls and one boy c) there will be at least two boys
• Boys and girls
There are eight boys and nine girls in the class. There were six children on the trip from this class. What is the probability that left a) only boys b) just two boys
• Salami
How many ways can we choose 5 pcs of salami if we have 6 types of salami for 10 pieces and one type for 4 pieces?
• Wagons
We have six wagons, two white, two blue, and two red. We assemble trains from them, wagons of the same color are exactly the same, so if we change only two white wagons on a train, it's still the same train, because I don't know any different. How many di
How many ways can we thread 4 red, 5 blue, and 6 yellow beads onto a thread?
• Two groups
The group of 10 girls should be divided into two groups with at least 4 girls in each group. How many ways can this be done?
There are 15 boys and 12 girls at the graduation party. Determine how many four couples can be selected.
• Three workplaces
How many ways can we divide nine workers into three workplaces if they need four workers in the first workplace, 3 in the second workplace and 2 in the third?
• 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
There are 729 families having 6 children each. The probability of a girl is 1/3 and the probability of a boy is 2/3. Find the the number of families having 2 girls and 4 boys.
• Tournament
Six teams entered the basketball tournament. How many matches will be played if each team has to play one match with each other?
• Word MATEMATIKA
How many words can be created from the word MATEMATIKA by changing the order of the letters, regardless of whether or not the words are meaningful?
• Sum or product
What is the probability that two dice fall will have the sum 7 or product 12?
• Three reds
What is the probability that when choosing 3 carats from seven carats, all 3 reds will be red?
• Cards
From a set of 32 cards we randomly pull out three cards. What is the probability that it will be seven king and ace?
• Combinations of sweaters
I have 4 sweaters two are white, 1 red and 1 green. How many ways can this done?