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34kurt
3 years ago
6

a shipment of ball bearings with a mean diameter of 25 mm and a standard deviation of 0.2 mm is normally distributed. by how man

y standard deviations does a ball bearing with a diameter of 25.6 mm differ from the mean? 0.6 1 2 3
Mathematics
1 answer:
yarga [219]3 years ago
3 0
Mean diameter = 25 mm
Standard deviation = 0.2 mm
25.6 mm - 25 mm = 0.6 mm
0.6 mm : 0.2 mm = 3
Answer:
A ball bearing with a diameter 25.6 mm differs from the mean
D ) 3 standard deviations.
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Mrs William has a prized box with different colored tickets. Each ticket results in different type of prize.
Lera25 [3.4K]

\text{ Answer:} \text{ Probability that he chooses a yellow ticket and then a purple ticket }= \frac{3}{25}

Step-by-step explanation:

Since we have given that

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As we know that Pedro select a ticket and replace it and then select another ticket , total number of outcomes will never change it will be 10 only for each case.

Probability that he chooses a yellow ticket and then a purple ticket is given by

\frac{4}{10}\times \frac{3}{10}\\\\=\frac{12}{100}\\\\=\frac{3}{25}

6 0
3 years ago
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I am Lyosha [343]
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Nimfa-mama [501]

Answer:

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Step-by-step explanation:

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Masja [62]

Hey there!

We have 10 pieces of paper. The probability of drawing a 10 is 1/10.  Therefore, if we were to draw ten times, the ten should probably be drawn once. If we multiplied our number of drawings by four (10*4=40), our outcome of seeing our slip with the ten should also quadruple and become four times. (1*4=4)

I hope that this helps! Have an awesome day!

6 0
3 years ago
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