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Angelina_Jolie [31]
3 years ago
11

according to the 2000 U.S. Census, 138,053,563 Americans are male, and 143,368,343 Americans are female. About what percent of f

he population is male. female? Round your answers to the nearest percent
Mathematics
1 answer:
Novosadov [1.4K]3 years ago
8 0

Givens

Male  =      138,053,563

Female =   143,368,343

Total

The total equals 281 421 906

Percents

Male = (138,053,563 / 281 421 906) * 100 = 49.1%

Female = ( 143,368,343/ 281 421 906) * 100 =  50.94%

Rounded

Male =  49

Female = 51

Comment.

To find this %s you could just use the first 3 digits of everything.

Total = 138 + 143 = 281

% male = (138/281) = 49.1

% female = (143/281) * 100 = 50.88

These give you the same answers when rounding.

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Step-by-step explanation:

The sample space should show all the possible outcomes.

The first option includes all 4 colors and both head and tails.

The second option is missing tails as an outcome.

The third option is missing blue.

The fourth option is missing tails.

So it must be the first one.

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Find the area of the parallelogram please.
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13·19·SIN(60°) = 213.9

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In proof testing of circuit boards, the probability that any particular diode will fail is . Suppose a circuit board contains di
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Complete Question

In proof testing of circuit boards, the probability that any particular diode will fail is 0.01.

Suppose a circuit board contains 200 diodes. How many diodes would you expect to fail, and what is the standard deviation of the number that are expected to fail? What is the (approximate) probability that at least four diodes will fail on a randomly selected board?If five boards are shipped to a particular customer, how likely is it that at least four of them will work properly? (A board works properly only if all its diodes work)

Answer:

  The number of diode expected to fail is

             \mu =2

 The standard deviation is

          \sigma  = 1.407

  The probability that at least four diodes will fail on a randomly selected board is  

P(X \ge 4) =  0.1419

Step-by-step explanation:

Generally the testing follows a binomial distribution because

1 The number of trials is finite

2 There is only two outcomes( which (a) A diode fail (b) a diode does not fail)

3 The each individual trial is independent of each other.

4 The chances of success is constant for every trial

From the question we are told that

The probability that a diode will fail is p =  0.01

The sample size is n = 200

Generally the number of diode expected to fail is mathematically represented as

\mu = n * p

=> \mu = 200 * 0.01

=> \mu =2

Generally the standard deviation is mathematically represented as

\sigma  =  \sqrt{ np * (1 - p)}

=> \sigma  =  \sqrt{ 200* 0.01  * (1 - 0.01 )}

=> \sigma  = 1.407

Generally the probability that at least 4 diode will fail is mathematically represented as

P(X \ge 4) =  1 - P(X <  4 )

Generally

P(X <  4 ) =  P(X = 0 )  + P(X =  1) + P(X = 2) + P(X = 3)

=> P(X <  4 ) =  ^nC_0  p^0 * (1-p)^{n-0} +^nC_1  p^1 * (1-p)^{n-1}+^nC_2  p^2 * (1-p)^{n-2}+ ^nC_3  p^3 * (1-p)^{n-3}

=> P(X <  4 ) =  ^{200}C_0  p^0 * (1-0.01)^{200-0} +^{200}C_1  (0.01)^1 * (1-0.01)^{200-1}+^{200}C_2  (0.01)^2 * (1-0.01)^{200-2}+ ^{200}C_3  (0.01)^3 * (1-0.01)^{200-3}

=> P(X <  4 ) =  0.134 + 0.2707 + 0.2727 + 0.1814

=> P(X

So

      P(X \ge 4) =  1 -0.8581)

=> P(X \ge 4) =  0.1419

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Amiraneli [1.4K]

supplementary angles are two angles whose measures have a sum of 180 degrees. complementary angles are two angles whose measures have a sum of 90 degrees.

might want to check your spelling

7 0
3 years ago
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