Let $X$ be the random variable denoting the number of girls that are born. Then $X$ has a binomial distribution on $n=125$ babies and probability of getting a girl $p=0.5$ . The probability we want is

$\mathbb P(X\ge60)=\displaystyle\sum_{x=60}^{125}\binom{125}x0.5^{125-x}0.5^x\approx0.704=70.4\%$

7 0

2 years ago

Read 2 more answers

5.5-3b=2b-6.25 how do you slove

olga55 [171]

Add 6.25 from 5 then you get 11.25. then you add 3b to 2b then you get 5b. the. divide 5b to 11.25 to get the answer

3 0

3 years ago

I need help again brainiest who ever get this right

Leona [35]

Answer:

Step-by-step explanation:

26x25x24x23x22x21x10x9=30,891,577,600

=Thirty billion, eight hundred ninety-one million, five hundred seventy-seven thousand, six hundred.

the answer was kind of in the question btw :)

6 0

3 years ago

Please someone help me with this please. Thank you.

scoundrel [369]

Answer:

f(x)=2+3x

f(x)=1+2x

f(x)=3+4x

Step-by-step explanation:

(Refer to picture)

I worked really hard on this, if it's wrong, I'm throwing hands, haha

I explained some things too, so zoom in for my ugly handwriting

If you can't read something, just ask and I'll clarify!

5 0

2 years ago