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3 years ago

In a sample of 94 widgets, 4 were defective. How many defective widgets would you expect in a sample of 282 widgets?

Mathematics

2 answers:

Vlada [557]3 years ago

8 0

Answer:

Step-by-step explanation: 282 divided by 94 = 3

4x3=12

expeople1 [14]3 years ago

4 0

Answer:

12 defective widgets

Step-by-step explanation:

Here we calculate the "experimental probability:" 4 defective widgets out of 94 widgets comes out to a probability of being defective of 4/94, which of course could be reduced.

But we can go ahead and calculate the expected number of defective widgets by mult. that 282 widgets by the probability 4/94:

282 4

------- * ------- = 12

1 94

In this sample of 282 widgets, we could expect that 12 will be defective.

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One half liter of lemonade concentrate is added to 3 liters of water. how many one thirds liter servings of lemonade are made.

uysha [10]

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so in short, how many times does 1/3 go into 3 and 1/2?

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Two siblings' ages have a sum of 64 years. The older sibling was born 6 years before their young sibling.

Elina [12.6K]

Hi!

So we have to make a system of equations here.

Let sibling 1 be O and sibling 2 be Y (for older and younger)

So:

O + Y = 64

O = 64 - Y

(Either one works)

The older sibling is 6 years older.

O = Y + 6

Make everything in terms of Y.

64 - Y = Y + 6

Same to both:

58 = 2y

2y = 58

Divide by 2 on both sides:

y = 29

Since the older sibling is 6 years older:

29 + 6 = 35

Y = 29

O = 35

Let me know if you have any questions.

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