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1.Describe how to calculate standard deviation with example 5
2. Define and describe normal distribution and Bell curve. Include image and discuss outliers 5
3. Solution to Unit Question in own words
Description of experiments and unit progression
May include image from desmos link of data 4
4. Utilized Vocab and notation 3.5
5. Reflection on learning. Strengths and struggles. Growth through unit. 5
total 23.5/25

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Outliers are numbers that outside your (2) given standard deviations.

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During this unit i was confused on getting the decimals and how other people determined the standard deviation. But I eventually began to understand how they did it little by little.

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This is our class data. together we were able to find out that it is 71 seconds and the prisoner is free

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the standard deviation symbol is the lower case greek alphabet symbol "sigma"

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1,2,3,4,5
mean is 3
standard deviation =3.31
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1st deviation
3 - 3.31 = 0.31
( to the 1st left standard deviation)
3 + 3.31 = 6.31

( to the first standard deviation to the right)
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for the second standard deviations you will double what you did to find the first standard deviations. but double it add 3.31 twice to the mean and subtract 3.31 from the mean twice.
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for the third standard deviation do it again three times

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to find normal distribution. you will find the mean of the data spread first. and then find the standard deviation.

after you find them both yo will subtract and add to the mean to find your 1st standard deviation from the mean and your 2nd and your 3rd and so on.

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This is what we call a bell curve. within 1 standard deviation from the mean (first lines from the middle going in both directions.) is 68%. 2 standard deviations from the mean is 95%. and within 3 standard deviations is 99%

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the distance from the average. (mean)

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1,5,6,7,3,2,4,5,6,7
median: 3 & 2
if there are two numbers left add them and then divide by two.

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the middle number

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1,1,1,3,3,3,2,2,22,4,4,4

mode:2

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the majority number that finds the average.

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12 + 13 + 40 + 6 = 71
40-6= 34

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to find range you take the highest number and subtract it by the lowest

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1 +2+3+4=10
10/4=2.5
the mean is 2.5

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to find the mean add up the numbers and divide by the amount of numbers present in the data.

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1,3,5,6

1+3+5+6
15/4
3.75 = the mean
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3.75-1
3.75-3
3.75-5
3.75-6
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2.75, .75, -1.25, -2.25
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^^^^ square those numbers
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7.5625
.5625
1.5625
5.0625
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^^^^ add them together and then divide by the amount of data available.
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14.75
2.95 = the variance
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square root the Variance.
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standard deviation =  1.717

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1. find the mean
2. find the difference between each data item and the mean
3. square each difference
4. find the average (mean) of the squared differences
5. take the square root of this average

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The Pit and the Pendulum (1961) - The Pendulum Swings

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The Pendulum scene from the finale of 'The Pit and the Pendulum' (1961). Starring Vincent Price. Directed by Roger Corman. Written by Richard Matheson based on a story by Edgar Allen Poe.

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How long will it take for the pendulum to swing 12 times