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
Nat2105 [25]
3 years ago
15

Suppose we pick three people at random. For each of the 2.32 The following questions, ignore the special case where someone migh

t be born on February 29th, and assume that births are evenly distributed throughout the year.(a) What is the probability that the first two people share a birthday?(b) What is the probability that at least two people share a birthday?
Mathematics
1 answer:
inn [45]3 years ago
7 0

Answer:

(a) 1 in 365 or 0.2740%

(b) 0.8227%

Step-by-step explanation:

(a) For any given birthday date of the first person, there is a 1 in 365 chance that the second person shares the same birthday, therefore the probability that the first two people share a birthday is:

P = \frac{1}{365}=0.2740\%

(b) There are four possibilities that at least two people share a birthday, first and second, first and third, second and third, all three share a birthday. Therefore, the probability that at least two people share a birthday is:

P =3* \frac{1}{365}+ (\frac{1}{365})^2\\ P=0.8227\%

You might be interested in
2. A landscaper drew a scale drawing of a rectangular yard using the scale, , before beginning to work on the yard.(a) The lands
Phantasy [73]

Complete question :

A landscaper drew a scale drawing of a rectangular yard using the scale, , before beginning to work on the yard.

(a) The landscaper plans to put a fence around the entire yard. How many meters of fencing does she need? Show your work.

(b) The landscaper plans to create a rectangular garden that is the size of the actual yard. What is the area of the garden?

Answer:

28cm ; 48cm²

Step-by-step explanation:

From the diagram :

Length = 8cm

Width = 6cm

Meters of fencing required :

Perimeter of rectangle :

P = 2(length + Width)

P = 2 (8cm + 6cm)

P= 2(14cm)

P = 28 cm

2.)

Area of rectangle :

Length * width

8cm * 6cm

= 48cm²

8 0
3 years ago
In the number at the right circle the 4 that has 10 times the value of the underlined 4
Aleksandr [31]
I think you would multiply 4 and 10  and that equals 40.
7 0
3 years ago
I need to find a expression equivalent to this with the same numbers <br><br> 2•((4•x•3)•6)
Kryger [21]

Answer:

144 * x

Step-by-step explanation:

2*4*x*3*6

2*4*3*6*x

8*3*6*x

24*6*x

144*x

3 0
2 years ago
In which measurement situations would the most appropriate unit of measurement be feet?
nikklg [1K]
The answer would be the distances that are not too large and not too small

A.legnth and width of a ball room
this would work because the next measurement is 1  mils and ball rooms are not that big


B. width of an eyelash. that is rediculously small so this is wrong

C. distanc from chicaco to san fransisco
way too far, use miles

D. height of a door
corect, door is apout 8 feet aprox


answer is A and D
5 0
3 years ago
Augie burns 225 calories per 30 minutes of bicycling How many minutes would Augie have to bike to burn 150 calories
lianna [129]
Well first 225/30 is 7.5 so you times 7.5 by any number till you get 150, which the answer is 20 minutes to burn 150 calories

work:
223/30 = 7.5
7.5 * 20 = 150
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is 0.26 repeating (.26 reappearing) as a fraction in simplest form?
    10·1 answer
  • A line passes through the point
    5·1 answer
  • Markus receives dollar bills from his grandfathet for one week.On the first day he received $1; on the second day he received $2
    12·1 answer
  • The total number of fungal spores can be found using an infinite geometric series where a1 = 8 and the common ratio is 4. Find t
    7·1 answer
  • I need 1-3 help me!!
    10·1 answer
  • Olivia was making baggies of cookies with nine cookies in each bag. if she had thirteen chocolate chips cookies and forty one oa
    12·1 answer
  • !!!TIMED REVIEW PLS ANSWER QUICKLY WILL LIST BRAINLIEST♡<br>three fifths multiplied by two tenths​
    9·2 answers
  • Hayden put 2 cups of lemon juice and 3 times as much water into a jar of lemonade.
    5·2 answers
  • Hpw does the graph of the function g (x) =5x +1 differ from the graph of f(x) = 5x
    5·1 answer
  • What is the area of the parallelogram
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!