3 years ago

3. Which situation could be represented by the graph shown?

2 answers:

8 0

Answer: Could you provide a image of the question it's very unclear

4 0

It should be represented into a Jorge

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arsen [322]

Because 4 is in the 10's place and 14's 4 is also in the tens place

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charle [14.2K]

The mean is $\mu=85$ and standard deviation is $\sigma=5$ . Then the variable $X\sim N(85,5)$ .

Use substitution $Z=\dfrac{X-\mu}{\sigma}=\dfrac{X-85}{5}$ , then the variable $Z\sim N(0,1)$ .

The probability $Pr(X>80)$ can be calculated in the following way:

for X=80, $Z=\dfrac{80-85}{5} =-1$ and $Pr(X>80)=Pr(Z>-1)$ . From the diagram $Pr(Z>-1)=0.34+0.34+0.135+0.025=0.84$ .

Conclusion: if 188 students take the exam, then 188·0.84=157.92 (157) would receive a score above 80

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LiRa [457]

112 wheels were in the parking lot

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Kryger [21]

50/10 = 5
5 * 0.15 = 0.75
it will cost 75 cents

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3 years ago

Lena [83]

Answer:

31.4 meters

Step-by-step explanation: use the formula 2 times pi times 5 then you just plug in 5 into the radius

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3 years ago