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2 years ago

How can I do this, please sample I have to add but I don’t get the right answer, please show example

Mathematics

1 answer:

lana [24]2 years ago

3 0

If you convert the hours to minutes and subtract them you should get correct answer.

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An optical inspection system is used to distinguish among different part types. The probability of a correct classification of a

Whitepunk [10]

Answer: $\mu=2.88\ \&\ \sigma^2=0.115$

Step-by-step explanation:

Given : The probability of a correct classification of any part is : p=0.96

sample size : n= 3

The formula to find the mean and variance for binomial distribution is given by :-

$\mu=np\\\\\sigma^2=np(1-p)$

Let the random variable X denote the number of parts that are correctly classified.

The, for the given situation, we have

$\mu=3(0.96)=2.88\\\\\sigma^2=(3)(0.96)(1-0.96)=0.1152\approx0.115$

Hence, the mean and variance of X are 2.88 and 0.115 respectively.

4 0

3 years ago

If x+2=5 then x= What

alexandr402 [8]

Answer:

Step-by-step explanation:

5-2=3

Just do it the other way to find the answer!

I hope this helps!

3 0

2 years ago

Read 2 more answers

Find the slope of (1,8) and (-1,-4)

aniked [119]

Answer: slope= 6

Slope intercept equation= y= 6x +2

Step-by-step explanation:

Slope formula: (y2 - y1) ÷ (x2 - x1) > (-4-8) ÷ (-1-1) = -12/-2 or 6

Plug slope (-6) and one coordinate into point slope form: y-1=m (x-1)

where m is slope and (1,8) would be (x,y)

Y-8= 6(x-1) > y-8 = 5x -6 > y= 6x +2

3 0

3 years ago

How do solve this problem?

Sloan [31]

Perimeter of the whole shabang should be (7*2)+(5*2)

4 0

3 years ago

Read 2 more answers

A photograph measures 12 centimetres by 20 centimetres. A printing company enlarges the photo. The length of the enlarged photo

Studentka2010 [4]

Answer:

36 centimeters

Step-by-step explanation:

Since one side is 60 centimeters, just divide by 20 and get 3

Then multiply 12 by 3 and get 36

I hope this helps!

6 0

2 years ago