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elena-s [515]
3 years ago
11

Shawna has four gumdrops that are blue, red, yellow, and green. She randomly picks one gumdrop from a bag and replaces it.

Mathematics
2 answers:
marshall27 [118]3 years ago
5 0
The answers are as follows; .275,.225, 2, .30
Sliva [168]3 years ago
5 0

Answer:

.275  ,   .225  , .2  ,   .30

The relative frequency of picking a <u>blue</u> gumdrop = .275

The relative frequency of picking a <u>red</u> gumdrop = .225

The relative frequency of picking a <u>yellow</u> gumdrop = .2

The relative frequency of picking a <u>green</u> gumdrop = .30

Hope this helps!

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ArbitrLikvidat [17]
Hey there.

1.) The mode is the number that's most frequent in a given list.
In our list, we have 2, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 9, 10.
Our most frequent number is 6; therefore, our mode is 6.

2.) The median is the number in the middle of a list organized from least to greatest.
2, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 9, 10;
4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 9;
4, 5, 5, 5, 6, 6, 6, 6, 7;
5, 5, 5, 6, 6, 6, 6;
5, 5, 6, 6, 6;
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6.
6 is our median.

I hope this helps, despite your answer choices not providing the correct answer.
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3 years ago
(x+1)^2+(x-1)^2-2x(x+2)=0
antoniya [11.8K]

Answer:

x = 1/2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

  • (x+1)^2+(x-1)^2-2x(x+2)=0
  • x^2 + 2x + 1 + x^2 - 2x + 1 -2x^2 -4x = 0
  • (x^2 + x^2-2x^2) + (2x-2x-4x)+(1+1)=0
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Step 2: Subtract 2 from both sides.

  • -4x + 2 - 2 = 0 - 2
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Step 3: Divide both sides by -4.

  • \frac{-4x}{-4} = \frac{-2}{-4}
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2 years ago
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2 years ago
A simple random sample from a population with a normal distribution of 99 body temperatures has xbar = 99.10°F and s = 0.64°F. C
motikmotik

The general formula for the margin of error is e = (zs)/√n, when the sample size is 30 or more (otherwise, we'd need to to a t-interval).

Since we're needing a 99% confidence interval, we need to know what the positive z-score associated with this two-tailed area under the normal curve is.  This can be a little tricky if you're using a standard normal table.  What you want is a two-tailed interval that has an area of .99.  What this means is that the remaining 0.01 is divided into 0.005 on each end.  This then means that, to the right of the mean (which is 0), the area is 0.005 less than the total right-half area of 0.5, or 0.495.  The total cumulative area, then, includes this plus the left half of .5, or 0.5 + 0.495 = .0995.

Then, if all we have to go on is a cumulative standard normal table, then we need to find the area closest to 0.995 and find the corresponding z-score.  This z-score is 2.58.

Now that we have the z-score, we can now plug in all the values into the formula.  

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The TI-84 method:

This is much easier, if you're allowed to use this technology.  You begin with the STAT button, and then move over to the TESTS menu.  Then select ZInterval.  We have summary stats rather than data in this problem, so we select Stats as the input.  For the standard deviation, we put 0.66, for x-bar 98.8, for n 102, and for C-level 0.99.  Then select Calculate, and it will provide the interval at the top of the screen (98.632, 98.968).  Note that the lower limit is slightly different by this method.  This is because, when doing it by hand, we had to approximate the z-score.  This created a rounding error, albeit  a small one.

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3 years ago
There are 24 hours in 1 day. If you sleep 30% percent of the day how many hours do you sleep
natulia [17]
7.2 hours a day. You get this answer by dividing 24 by 10 because that is 10% which is 2.4, multiply this by three which equals 30% and the answer is 7.2
8 0
3 years ago
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