2 years ago

Answer fast:), how many square yards is it ??

Mathematics

2 answers:

lidiya [134]2 years ago

8 0

It is 157 square yard

Shkiper50 [21]2 years ago

6 0

157 square yards....

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Lots of 40 components each are deemed unacceptable if they contain 3 or more defectives. The procedure for sampling a lot is to

MrRissso [65]

Answer:

The probability of founding exactly one defective item in the sample is P=0.275.

The mean and variance of defective components in the sample are:

$\mu=0.375\\\\\sigma^2=0.347$

Step-by-step explanation:

In the case we have a lot with 3 defectives components, the proportion of defectives is:

$p=3/40=0.075$

a) The number of defectives components in the 5-components sample will follow a binomial distribution B(5,0.075).

The probability of having one defective in the sample is:

$P(k=5)=\binom{5}{1}p^1(1-p)^4=5*0.075*0.925^4=0.275$

b) The mean and variance of defective components in the sample is:

$\mu=np=5*0.075=0.375\\\\\sigma^2=npq=5*0.075*0.925=0.347$

The Chebyschev's inequality established:

$P(|X-\mu|\geq k\sigma)\leq \frac{1}{k^2}$

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3 years ago

620 prime factorization

seraphim [82]

Prime factorization of 620:

620

2 310

2 155

5 31

31 1

8 0

2 years ago

Which of the following are equivalent to the expression x^1/3*x^1/2? Select all that apply

mars1129 [50]

Answer:

options 2,4 and 6 should be correct.

Step-by-step explanation:

5 0

3 years ago

If the simple interest on $3000 for 8 years is $1680, then what is the interest rate?

Fiesta28 [93]

R=i/pt
R=1680/3000*8=1,680÷24,000
=0.07*100=7%

3 0

3 years ago

Two angle measures in a triangle is 81 and 62 what is the missing angle

tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

Let the missing angle be x then .,

81 + 62 + x = 180 (being sum of angles of triangle )

143 + x = 180

x = 180 - 143

x = 37

<em>Therefore the missing angle is 37</em>

6 0

2 years ago

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