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Dafna1 [17]
2 years ago
7

In the United States, 40% of the population have brown eyes (based on data from Dr. P. Sorita Soni at Indiana University). If 14

people are randomly selected, find the probability that at least 12of them have brown eyes.
Mathematics
1 answer:
Sav [38]2 years ago
4 0

Answer:

0.0006087 (4 sf)

Step-by-step explanation:

Binomial distribution:  X ~ B(n, p)

where n is the number of trials and p is the probability of success

Let the random variable X be the number of people with brown eyes

n = 14

p = 40% = 0.4

Therefore,  X ~ B(14, 0.4)

P(X ≥ 12) = 1 - P(X ≤ 11)

              = 1 - 0.9993913226...

              = 0.000608677...

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Mice21 [21]
16= 6 ones or 16 ones
817= 8 hundreds and 7 ones or 17 ones

Hope this helps! :D
6 0
3 years ago
-2x+4y=-8 which graph models the equation
katovenus [111]
Hello!

First you have to get the equation into slope-intercept form

Slope-intercept form is y = mx + b

-2x + 4y = -8

Add 2x to both sides

4y = 2x - 8

Divide both sides by 4

y = 1/2 x - 2

The graph is a line that goes through the points (0, -2), (-2, -3), (2, -1) and
(4, 0)

Hope this helps!
5 0
3 years ago
What is 8.478 in expanded form
Karo-lina-s [1.5K]
8 + 0.4 +  0.07 + 0.008 is your answer. But all you had to do is separate your numbers with working on the biggest number to the smallest number.  



4 0
4 years ago
What is the answer to this problem 3/2 x=−15
fomenos

Answer:

-15×2=-30

30÷3=10

not sure

4 0
3 years ago
Divide 2x^4-7x^3+x^2-18x+3 by x-4 using long division ​
katrin [286]

Answer:

47×3+c

Step-by-step explanation:

141+c

4 0
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