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3 years ago

Is step 3 correct or would I change 5/2 into a decimal?

Mathematics

2 answers:

Rzqust [24]3 years ago

8 0

Answer:

keep it man u will do ok just be careful with other problems

Step-by-step explanation:

I am Lyosha [343]3 years ago

6 0

Answer:

Good Job!!! You would keep it as a fraction. My teacher said to NEVER use decimals with problems like these.

Step-by-step explanation:

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Assume that the probability of a defective computer component is 0.02. Components arerandomly selected. Find the probability tha

solmaris [256]

Answer:

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

Step-by-step explanation:

Assume that the probability of a defective computer component is 0.02. Components are randomly selected. Find the probability that the first defect is caused by the seventh component tested.

First six not defective, each with 0.98 probability.

7th defective, with 0.02 probability. So

$p = (0.98)^6*0.02 = 0.0177$

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

Find the expected number and variance of the number of components tested before a defective component is found.

Inverse binomial distribution, with $p = 0.02$

Expected number before 1 defective(n = 1). So

$E = \frac{n}{p} = \frac{1}{0.02} = 50$

Variance is:

$V = \frac{np}{(1-p)^2} = \frac{0.02}{(1-0.02)^2} = 0.0208$

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

5 0

3 years ago

Perimeter and area of the combined figure

Oduvanchick [21]

Area : 1050
Perimeter : 150

7 0

3 years ago

Solve this question a=7+3

mr Goodwill [35]

Answer:

Step-by-step explanation:

The answer is 10 because 7 + 3 equals 10!

This can be proven by adding 7 + 3 or by subtracting in a certain way.

7 + 3 = ?

7 + 1 = 8

7 + 2 = 9

7 + 3 = 10

You can show more work by subtracting your answer or 10 in this case, which means that you subtract 7 by 10 or 3 by 10, either way is ok.

If you subtract 7 by 10, ( 10 - 7 ) then you get 3

If you subtract 3 by 10, ( 10 - 3 ) then you get 7

If the number you subtracted matches the number that you didn't subtract, then your answer is correct.

Hope this helps! <3

5 0

3 years ago

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What is the approximate area of the circle, in square centimeters? Use 3.14 for π (pi). Record your answer on the grid. then fil

iragen [17]

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3 years ago

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What is the area of a rectangle whose sides are 12 feet long and 5 feet wide?

IgorLugansk [536]

Answer:

Step-by-step explanation:

Area of rectangle (A)=Length (L) × Width (W)

A=12×5

A=60

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3 years ago