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Bad White [126]
3 years ago
12

50% of babies are born female. olive wants to find probability that 20 or more of the 50 babies born today were female.we need t

o design a simulations .which random device device can we use to best represent this situation
Mathematics
1 answer:
kakasveta [241]3 years ago
4 0
Since the probability that 50% of the babies born are female, she could use any probability model that is 50/50.

For example, she could flip a coin. Or she could roll a die, using the even numbers for girls and odd numbers for boys.
You might be interested in
What is slopes and how do you solve them?
lisov135 [29]
You use rise over run

so say a graph is going up 2 for every 1 going across 

the slope would be 2 over 1 
4 0
3 years ago
Gretchen has eight socks, two of each color: magenta, cyan, black, and white. she randomly draws four socks. what is the probabi
Svetllana [295]
Begin by computing the number of all the possibilities:
It is given by the following formula:C_8^4=\frac{8!}{4!(8-4)!}= \frac{8\times7\times6\times5}{4\times3\times2}=70
Computing the number of favorable cases:
Exactly one pair of socks with the same color means either one magenta pair, 
or one cyan pair, or one black pair or one white pair:
Number of possibilities with one magenta pair means"a magenta pair plus two socks with different colors from three possibilities" means 3 possibilities. 
Same computation for the other colors. 
Adding we get: 3+3+3+3=12\text{ possibilities }
By definition, the probability of an event is the number of favorable cases over the number of possible cases:
\frac{12}{70}= \frac{6}{35}

The probability is \frac{6}{35}
3 0
4 years ago
Transform the parent function f(x) = x ^ 2 by vertical stretch of 3, a horizontal translation 2 units left and a vertical transl
IgorLugansk [536]

Answer:

f(x)= 3(x+2)+4

Step-by-step explanation:

f(x)=a(x-h)+k

a= stretches the function

h= horizontal units

k= vertical units

7 0
4 years ago
5 students, including Alice, Bob, and Cindy, line up in a row. In how many ways can they line up so that Alice is somewhere betw
Inga [223]

Answer:

20 possible arrangements

Step-by-step explanation:

A: Alice  

B: Bob

C: Cindy

X: other student

All the possible arrangements are:

When Bob is in the first place

B A C X X

B A X C X

B A X X C

B X A C X

B X A X C

B X X A C

6 possible arrangements

When Bob is in the second place (notice that neither Alice nor Cindy can be before Bob)

X B A C X

X B A X C

X B X A C

3 possible arrangements

When Bob is in the third place

X X B A C

Only 1 possible arrangement.

Total arrangements when Bob is before Cindy: 10

If Cindy is before Bob the same situations are repeated, given another 10 arrangements. So, the total line up in which Alice is somewhere between Bob and Cindy are 20.

7 0
3 years ago
Evaluate. – 3 (–5) (2)​
viktelen [127]

Answer:  30

Step-by-step explanation:

– 3 (–5) (2)​

(15)(2)

30

4 0
2 years ago
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