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RideAnS [48]
3 years ago
13

The scores on a test are normally distributed. The mean of the test is 750 and the standard deviation is 70. By using the Empiri

cal rule, what scores fall 3 standard deviations from the mean?
a.610 and 820 b.610 and 960 c.680 and 820 d.540 and 960
Mathematics
1 answer:
melomori [17]3 years ago
5 0
I think it will be B 610 and 820 but im not sure.
Hope This Helps!
~Cupcake
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irinina [24]

Answer:

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What is the volume of the cone with a diameter of 9ft and a height of 15ft? Use the formula v - 5 nr?h. Use 3.14 for 5 and round
Juli2301 [7.4K]

Answer:

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Step-by-step explanation:

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What is the area of the shaded region? (Approximate π to be 3.14)
kifflom [539]

Answer:

  about 113.04 square inches

Step-by-step explanation:

No angles are indicated, so we must assume the sector is 1/4 of the circle. Then its area is 1/4 of that of a circle with radius 12 in:

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3 years ago
A sample of baseball games shows that the mean length of the games is 179.83 minutes. (The data is given in BaseballTimes if you
Dmitriy789 [7]

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Since we have given that

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So, it becomes,

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Since z is greater than z(critical value).

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2.2 A Train is Traveling at...
sdas [7]

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distance divided by time

so

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7 0
3 years ago
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