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Ronch [10]
3 years ago
6

Question 4

Mathematics
1 answer:
inessss [21]3 years ago
3 0

Answer:

Plot for Variable C Only

Step-by-step explanation:

Trust me, unless your teacher switched the order of the charts in which case it's the linear one!

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algol13
The answer should be B !! Volume is when you’re determining how much something HOLDS, meaning all parts of it. The rest would be perimeter examples.
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A recipe says The repice call for
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A treasure chest sinks at a rate no less than 20 feet per second. The floor of the ocean is at most at -4,200 feet. Will the tre
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3 years ago
The physical plant at the main campus of a large state university receives daily requests to replace fluorescent light bulbs. Th
ankoles [38]

We have been given that the distribution of the number of daily requests is bell-shaped and has a mean of 38 and a standard deviation of 6. We are asked to find the approximate percentage of lightbulb replacement requests numbering between 38 and 56.

First of all, we will find z-score corresponding to 38 and 56.

z=\frac{x-\mu}{\sigma}

z=\frac{38-38}{6}=\frac{0}{6}=0

Now we will find z-score corresponding to 56.

z=\frac{56-38}{6}=\frac{18}{6}=3

We know that according to Empirical rule approximately 68% data lies with-in standard deviation of mean, approximately 95% data lies within 2 standard deviation of mean and approximately 99.7% data lies within 3 standard deviation of mean that is -3\sigma\text{ to }3\sigma.

We can see that data point 38 is at mean as it's z-score is 0 and z-score of 56 is 3. This means that 56 is 3 standard deviation above mean.

We know that mean is at center of normal distribution curve. So to find percentage of data points 3 SD above mean, we will divide 99.7% by 2.

\frac{99.7\%}{2}=49.85\%

Therefore, approximately 49.85\% of lightbulb replacement requests numbering between 38 and 56.

6 0
3 years ago
Terry sees this offer. 35% off refurbished phone, now only £78. What was the orginal price?
KengaRu [80]
35% off means that now it costs 100%-35%=65% of the original price

<span>£78 ---- 65%
x------100%

x=78*100/65=120</span>£<span>

or 
part/whole=0.65
78/whole=0.65
whole =78/0.65 =120 </span>£ 
8 0
3 years ago
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