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Alecsey [184]
3 years ago
8

Please help me i am really bad at math

Mathematics
1 answer:
nlexa [21]3 years ago
5 0

Answer:

the expression is -5 + 2. the sum is -3.

Step-by-step explanation:

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A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe
-Dominant- [34]

Answer: 0.0031

Step-by-step explanation:

Binomial distribution formula :-

P(x)=^nC_xp^x(1-p)^{n-x}, where P(x) is the probability of x successes in the n independent trials of the experiment and p is the probability of success.

Given : A binomial probability experiment is conducted with the given parameters.

n=9,\ p=0.8,\ x\leq3

Now, P(x\leq3)=P(3)+P(2)+P(1)+P(0)

=^9C_3(0.8)^3(1-0.8)^{9-3}+^9C_2(0.8)^2(1-0.8)^{9-2}+^9C_1(0.8)^1(1-0.8)^{9-1}+^9C_0(0.8)^0(1-0.8)^9\\\\=\dfrac{9!}{3!6!}(0.8)^3(0.2)^6+\dfrac{9!}{2!7!}(0.8)^2(0.2)^7+\dfrac{9!}{1!8!}(0.8)(0.2)^8+\dfrac{9!}{0!9!}(0.2)^9=0.003066368\approx0.0031

Hence,  P(x\leq3)=0.0031

8 0
3 years ago
Is my answer choice wrong or right?
Tasya [4]

Answer:

It is correct

Step-by-step explanation:

Gr8 job

6 0
3 years ago
The number of miles driven is proportional to the gallons of gasoline used. The graph shows this relationship. What is the unit
slamgirl [31]
I think the answer is 9.5 because that is the only number that can be multiplied by 4 that gives you 38. 
(4,38) = y=9.5x
6 0
3 years ago
Select the correct answer.
77julia77 [94]
I’m pretty
Shore it’s b
4 0
3 years ago
I get alot of these please help
shutvik [7]

Answer:

18 is 3 more than 9- false

18 is 3 times as much as 6 - true

9 is 3 times as much as 27- false

9 is 3 more than 6 - true

6 0
2 years ago
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