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Natali5045456 [20]
3 years ago
10

Need help pls help me

Mathematics
1 answer:
irina1246 [14]3 years ago
7 0
i can’t see it can you take a better picture
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In a state where license plates contain six digits, what is the probability that the license number of a randomly selected car h
andre [41]

Answer:

Step-by-step explanation:

Given : In a state where license plates contain six digits.

Probability of that a number is 9 = \dfrac{1}{10}   [Since total digits = 10]

We assume that each digit of the license number is randomly selected  .

Since each digit in the license plate is independent from the other  and there is only two possible outcomes for given case (either 9 or not), so we can use Binomial.

Binomial probability formula:  P(X=x)=^nC_xp^x(1-p)^{n-x}

, where n= total trials , p = probability for each success.

Let x be the number of 9s in the license plate number.

X\sim Bin(n=6, p=\dfrac{1}{10}})

Then, the probability that the license number of a randomly selected car has exactly two 9's will be :

P(X=2)=^6C_2(\dfrac{1}{10})^2(1-\dfrac{1}{10})^{6-2}\\\\=\dfrac{6!}{2!(6-2)!}(\dfrac{1}{100})(\dfrac{9}{10})^4=0.098415

Hence, the required probability = 0.098415

5 0
3 years ago
HELP ME PLEASE (50 points) picture below HELP PLEASE
antiseptic1488 [7]

Answer:

72.32

Step-by-step explanation:

i have spoken

3 0
3 years ago
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The process of selecting elements from a population, collecting data from them, and using it as representative of all those a re
IrinaVladis [17]

Answer:

Step-by-step explanation:

i don't know sorry

5 0
3 years ago
Find the inverse or opposite of (2n-8)
asambeis [7]

the additive inverse of -8 is 8

to find the additive inverse you just have to change the sign of the number

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3 years ago
Solve the systems of equations through elimination, show work<br> 3+2x-y=0<br> -3-7y=10x
Wittaler [7]

Answer: x=-1 y=1

Step-by-step explanation:

solve y in 3+2x-y=0

y=3+2x

sub y=3+2x into -3 -7y=10x

-14x- 24= 10x

solve x in -14x-24=10x

x= -1

sub x= -1 into y =3+2x

y=1

so therefore x= -1 and y=1

7 0
2 years ago
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