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
Grace [21]
3 years ago
13

The true probability of a baby being a girl is 0.475. What is the probability that at least one is a boy?

Mathematics
1 answer:
alex41 [277]3 years ago
6 0

Answer:

The probability that at least one is a boy is 0.525

Step-by-step explanation:

P(Baby being a girl) = 0.475

Now, if A is any arbitrary event . Then:

as we know P(A)+ P(not A) = 1

⇒ P(A not happening)  = 1 - P(A event happening)

Also,  P( baby not being a girl) = P(baby being a boy)

So,  P(baby being a boy)  = 1 - P( baby being a  girl)

                                          = 1 - 0.475   = 0.525

Hence,  the probability that at least one is a boy is 0.525

You might be interested in
suppose you do a favor for 3 people. then you ask each of them to do a favor for 3 more people, passing along the request that e
Mumz [18]
So until what day do you have to stop or what is your question?
6 0
4 years ago
A car dealer offers a 10% discount off the list price x for any car on the lot. At the same time, the manufacturer offers a $2,0
Alinara [238K]
A-- (x)(.10)= New cost

B--New cost-2000= Cost after 10% discount and 2,000 discount

C--You'll have find what number mulitiplied by(.10) equals $18,000

D-- $18,000 is the price with the $2,000 already taken out, so now you just do 18,000(.10)=
3 0
3 years ago
A state requires that all boat licenses consist of the letter A or M followed by any five digits. What is the number of groups o
torisob [31]

Answer:

200000

Step-by-step explanation:

The boat licenses are strings of six elements. Let's count the number of ways of constructing such string with the given conditions.

There are 2 ways of choosing the first character of the string (A or M). The second character can be any digit, so there are 10 possible choices. The third character is also any digit, so it can be chosen in 10 ways. Similarly, the fourth character can be chosen in 10 ways, and the fifth character can be chosen in 10 ways.

By the product rule there are 2×10×10×10×10×10=2×10^5=200000 ways to choose all the characters. Every choice of characters becomes a unique string (boat license) thus the number of avaliable boat licenses is 200000.s

7 0
3 years ago
These are the weekly wages paid to staff in a hotel. £245 £140 £525 £163 £195 £174 £140 What is the modal wage?
choli [55]

Answer:

£140

Step-by-step explanation:

Modal is the most common value in a sample, in this case it's 140

8 0
3 years ago
Jerry's CD player can hold five compact disks on a rotating tray around point A. The CD tray can move only counterclockwise. Ans
hjlf

Answer:

(a) 72 degrees

(b) 216 degrees

Let em know if you don't get how I answered either.  

Step-by-step explanation:

So, to go all the way around is 360 degrees since there are 360 degrees.  that means it turns 5 times for the beginning cd to be at the start again.  So in 5 equal turns it goes 360 degrees.  We want to know how much 360 is divided into 5 groups, or 360/5 = 72.

You can think of it this way, if it turns 72 degrees five times, it will have gone a full 360.  that answers a though, each switch to another CD is 72 degrees.

b is asking how many degrees is it to go from 1 to 4.  so how many movements is that?  1 to 2, 2 to 3 then 3 to 4.  So 4.  could have done 4-1 of course.  anyway. 3 movements each 72 degrees is 72*3 = 216.

6 0
3 years ago
Other questions:
  • Tickets at a play cost $10 or $14. If 800 tickets were sold and $9,040 was collected by the box office, how many $14 tickets wer
    10·1 answer
  • Can someone please help me with number 26
    15·2 answers
  • Use the rewritten formula to find the width of a rectangle with an area of 42 square inches and a length of 16.8 inches.
    12·2 answers
  • A computer and printer cost a total of $1028. The cost of the computer is three times the cost of the printer. Find the cost of
    6·1 answer
  • A hospital has a large fish tank with the dimensions shown. The tank does NOT have a cover. What is the surface area of the fish
    15·2 answers
  • I need help with number 15
    11·1 answer
  • I need this answer ASAP
    7·2 answers
  • Which has the greater volume: a cylinder with a 6-inch radius and a
    15·1 answer
  • 1 = 18, w = 10, h= 2​
    7·1 answer
  • How do you write this as a function?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!