1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zalisa [80]
3 years ago
7

How large must a group of people be in order to guarentee that there are at least two people in the group whose birthdays fall i

n the same month
Mathematics
1 answer:
vovikov84 [41]3 years ago
7 0

Answer:

13

Step-by-step explanation:

This problem is an example of pigeonhole principle which states that If n+ 1 objects are placed into n boxes, then some box contains at least 2 objects.

Here no. of months in a year are boxes n = 12.

Therefore number of objects( people) = n+1= 13.

Then,at least two people  in the group whose birthdays fall in the same month.

You might be interested in
Two boys and three girls are auditioning to play the piano for a school production. Two students will be chosen, one as the pian
Sergio039 [100]
The answer is 0.24

To calculate this, a multiplication rule is used. The multiplication rule calculates the probability that both of two events will occur. In this method, the probabilities of each event are multiplied. Here we have two events:

1. The probability that the pianist will be a boy,

2. The probability that the alternate will be a girl.


So, let's calculate these probabilities:

There are in total 5 children:

2 boys + 3 girls = 5 children.

1. The probability that the pianist will be a boy is 2 boys out of 5 children, which is 2/5.

2. The probability that the alternate will be a girl is 3 girls out of 5 children, which is 3/5.


<span>The probability that the pianist will be a boy and the alternate will be a girl is:</span>

<span>2/5 </span><span>× 3/5 = 6/25</span>

<span>6/25 </span><span>× 4/4 = 24/100 = 0.24</span>

3 0
3 years ago
Read 2 more answers
Which number line shows two different integers with the same value? A. 3 and 6 B. 5 and -5 C. 0 and 4 D.-4 and -2
Marizza181 [45]
None of the number lines show the same value
5 0
3 years ago
Read 2 more answers
Please help 20 points
irinina [24]
The answer would be 10
7 0
3 years ago
Read 2 more answers
PLEASE HELP!! BRAINILIESTTTT
Andrei [34K]

Answer:

The element is Boron(B)

Step-by-step explanation:

This is because on the periodic table, it shows that Boron has 5 protons and 5 electrons

5 0
3 years ago
In a typical stoichiometric problem, the given quantity is first converted to______. Then the ____ ratio from the balanced equat
ryzh [129]

Answer:

The correct answer is

moles

mole

moles

Step-by-step explanation:

In a typical stoichiometric problem, the given quantity is first converted to moles. Then the mole ratio from the balanced equation is used to calculate the moles of the wanted substance. Finally, the moles are converted to any other unit of measurement related to the unit mole.

4 0
3 years ago
Other questions:
  • I want to know the equation of the line
    6·1 answer
  • Answer this Idk what tor do
    9·1 answer
  • Find a counter example to show that the following statement is false:
    15·1 answer
  • 250% of 9.4 mi is what distance
    11·1 answer
  • How do I answer this question
    13·1 answer
  • The bear was chosen
    8·1 answer
  • What is 12 divided by 4
    9·1 answer
  • The measure of angle MPO is 72 degrees, find the measure of angle PMN
    11·1 answer
  • What is the slope of the line passing through the points (1, 3) and (3,9)?
    7·1 answer
  • Sarah has £135
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!