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goldfiish [28.3K]
2 years ago
11

Need help,with the step, equation pleases help really don’t understand

Mathematics
1 answer:
kap26 [50]2 years ago
4 0
Use Socratic it gives u a step by step explanation
You might be interested in
True or False ? Can you represent the distance of an object underground using negative numbers?
ivanzaharov [21]

Answer:

true

Step-by-step explanation: below sea level is negative, above sea level is positive.

6 0
3 years ago
Let x ∼ bin(9, 0.4). find
Kobotan [32]
A.
\mathbb P(X>6)=\mathbb P(X=7)+\mathbb P(X=8)+\mathbb P(X=9)
=\dbinom97(0.4)^7(1-0.4)^{9-7}+\dbinom98(0.4)^8(1-0.4)^{9-8}+\dbinom99(0.4)^9(1-0.4)^{9-9}
\approx0.025

b.
\mathbb P(X\ge2)=1-\mathbb P(X
=1-\dbinom90(0.4)^0(1-0.4)^{9-0}-\dbinom91(0.4)^1(1-0.4)^{9-1}
\approx0.929

c.
\mathbb P(2\le X
=\dbinom92(0.4)^2(1-0.4)^{9-2}+\dbinom93(0.4)^3(1-0.4)^{9-3}+\dbinom94(0.4)^4(1-0.4)^{9-4}
\approx0.663

d.
\mathbb P(2
=\dbinom93(0.4)^3(1-0.4)^{9-3}+\dbinom94(0.4)^4(1-0.4)^{9-4}+\dbinom95(0.4)^5(1-0.4)^{9-5}
\approx0.669

e.
\mathbb P(X=0)=\dbinom90(0.4)^0(1-0.4)^{9-0}\approx0.01

f.
\mathbb P(X=7)=\dbinom97(0.4)^7(1-0.4)^{9-7}\approx0.021

g, h.
For X\sim\mathcal B(n,p), recall that \mathbb 
E[X]=\mu_X=np and \mathbb V[X]={\sigma_X}^2=np(1-p). So

\mu_X=9(0.4)=3.6
{\sigma_X}^2=9(0.4)(0.6)=2.16
6 0
3 years ago
Please help me i have the pic below: find the 27th term given the function an=-10+(n-1)(-2)
Vitek1552 [10]

Answer:

-62

Step-by-step explanation:

Plug 27 into the equation

a27=-10+(27-1)(-2)

27-1=26

26 times -2 = -52

-52-10=-62

8 0
2 years ago
What is the measurement of 1?
Zinaida [17]
56°

A triangle makes a total of 180°
They have already given you the 83° and you know a line makes 180° so 180-139 gives you 41°.

83+41=124
180-124=56
8 0
3 years ago
How do you write 25 times 40 = 1000
tia_tia [17]
25*40=1000 is how you write 25 times 40 = 1000
8 0
2 years ago
Read 2 more answers
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