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Nesterboy [21]
3 years ago
6

A standard I.Q. test produces normally distributed results with a mean of 104 and a standard deviation of 16 for 52,000 students

in grade 12 in the state. Approximately how many of these students would have I.Q.s above 120?
Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
7 0

Answer:

maybe 250

Step-by-step explanation:

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The options doesn't match or the question is wrong but the answer is (1,2.5)

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x_{m}=\frac{0+2}{2}=1\\y_{m}=\frac{3+2}{2}=2.5

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Water is being pumped into a 12-foot-tall cylindrical tank at a constant rate.
Stels [109]

Answer:

4 feet

Step-by-step explanation:

It is given that:

• At 2:30 p.m., the water depth was 2.6 feet.  

• It is now 5:00 p.m., and the depth of the water is 3.6 feet.

So in 2.5 hours ( 5pm - 2:30pm) the water rose 1 feet (3.6 - 2.6).

Now <em><u>we can find how much water rises in 1 hour by setting up a ratio (let x be the depth increase of water in 1 hr):</u></em>

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3 years ago
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