4 years ago

Please help!!!!!!!!!

Mathematics

1 answer:

never [62]4 years ago

3 0

Answer:

retna

Step-by-step explanation:

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At a manufacturing plant where switches are made, it is a known fact that 2% of all switches are defective. If two switches are

olchik [2.2K]

Answer:

The probability that exactly one switch is good is

$P(x) =0.0392$

Step-by-step explanation:

The probability that a switch is defective is:

$P(D) = \frac{2}{100} =0.02$

The probability that a switch is not defective is

$P(D') = 1-P(D)=0.98$

Therefore, if two switches are selected, the probability that exactly 1 is good is:

$P(1=1)=P (D) P (D ') + P (D') P (D)$

$P(x)=(0.02)(0.98) + (0.98)(0.02)$

$P(x) =0.0392$

6 0

4 years ago

Read 2 more answers

32,457 × 12,781 Explain your reasoning.

puteri [66]

The answer is 414,832,917

7 0

3 years ago

Someone plz help!!!!!!

adell [148]

1) 43

2) 21

step by step:

Both triangles are right triangle which means they're equal to 90.

1) 23+24+X= 90

47+x= 90

x= 90-47

X= 43

2) 30+39+X= 90

69+X= 90

X= 90-69

X= 21

6 0

3 years ago

The Bradenton Post polled 1,356 adults in the city to determine whether they wet their toothbrush before they put toothpaste on

natulia [17]

Answer:

The mean is 0.54 and the standard deviation is 0.0135.

Step-by-step explanation:

i) the mean of the sampling distribution is 0.54

ii) the mean for the sampling distribution, p = 0.54

iii) therefore for the sampling distribution, q = ( 1 - 0.54) = 0.46

iv) the sample size of the distribution, n = 1356

v) $the\hspace{0.1cm} standard\hspace{0.1cm} deviation\hspace{0.1cm} s = \sqrt{\frac{p\times q}{n} } = \sqrt{\frac{0.54\times 0.46}{1356} } = 0.0135$

4 0

4 years ago

I have to be awake at 5am and it’s about to be 12am so can someone please help me with this 7th grade math homework

finlep [7]

Step-by-step explanation:

Divide the denominator by the numerator to find the percentage

5 0

4 years ago