Statistics

Statistics

1.Use the following grades and numbers of students achieving those grades. Make a Cumulative Frequency Chart for the above grades.

Grade number of students getting the grade

A 19

B 11

C 9D 5

F 6

2. Find the measures of central tendency: mean, median, mode.

3. Find the measures of dispersion range, standard deviation.

4. What does standard deviation measure?

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Probability

1. Find the probability of rolling at least one 3 in 4 rolls of a fair single die.

2. Find the probability of flipping a coin and getting at least one tail in 4 flips.

3. Chart for Heads and Tails Probability for flipping 3 coins at once or one coin 3 times.

HHHHHT

H TH

H T T

THH

THT

TTH

T TT

4 Find the following probabilities below using the chart above. Leave answers as fractions or decimals.

1. P( 3 tails)________________

2. P(3 heads)_______________

3. P(more than 1 head)_______

4. P(fewer than 3 tails)_______

5. P(At least two heads)________

5.Use a standard deck of 52 playing cards comprised of 13 hearts, 13 spades, 13 diamonds, and 13 clubs find the following probabilities when selecting one card at a time from the deck.

SPADES BLACK A K Q J 10 9 8 7 6 5 4 3 2

HEARTS RED A K Q J 10 9 8 7 6 5 4 3 2

DIAMONDS RED A K Q J 10 9 8 7 6 5 4 3 2

CLUBS BLACK A K Q J 10 9 8 7 6 5 4 3 2

1. P(Heart)

2. P (Red Card)

3. P(King)

4. P(Ace) or P(diamond)

5. Find the probability of selecting a club and then a spade; you put the first card back into the deck before selecting the second card

6. Find the probability of selecting a Queen and then a spade; you do not put the first card back into the deck before selecting the second card

7. How many ways can 13 third graders line up for the launch line.

8. How many 9-digit zip codes can be formed if there are 10 numbers available with no restrictions.

9. What number is the answer using nCr where n = 12 and r =4

10. What number is the answer using nPr where n =15 and r= 3

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Finance

1.Find the Amount of savings if the principle is $25,000, APR = 3.5% time 5 years compounded quarterly. Use formula 2

http://www.myarmortizationchart.com/

You are buying a house for $350,000. Select 30 years mortgage

1. Find the 20% down payment

2.What is the amount of the mortgage?

3. What is the monthly payment?

4. What are the monthly taxes?

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Statistics

 

YOU MUST COMPLETE THIS TO PASS THIS CLASS.

 

 

 

Step 1: Choose one of the following data sets. Click the randomization button a few times to get your sample.

      1) Aneurysm COD variety by state for 2018: https://www.desmos.com/calculator/qhxtd7lzgo

      2) Adult Asthma Prevalence by state for 2018: https://www.desmos.com/calculator/77hvhje77r

      3) Colon Cancer New Cases 2017: https://www.desmos.com/calculator/zpxonumkgf

      4) Drug Poisoning Mortality by State for 2018: https://www.desmos.com/calculator/tjctsa8xv5

      5) Leukemias Cancer for 2017: https://www.desmos.com/calculator/ufkyrt6pkb

Step 2: Provide the link to your personalized set of randomized values.

Step 3: Provide the mean, median, and standard deviation.

Step 4: Find or calculate the mode, IQR.

Step 5: What do the values in Steps 3 & 4 tell you about the data?

Step 6: Embed your histogram with boxplot

Step 7: Discuss the shape of your histogram, humps, skewness, etc.

 

 

 

 

 

 

 

 

 

 

Work must be shown with your answer in order to receive full credit. You can type out the work using the Math Equation Tool or embed a picture of your work (attachments will not be counted, you will need to embed your work). Work also must be shown when you reply to a post. If you do not have your work, you will lose points. Your initial post must be completed by Thursday night. You must have 2 replies by Sunday night.

 

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Statistics

Watch “Bunnies, Dragons, and the Normal World”

Bunnies, Dragons and the 'Normal' World: Central Limit Theorem | The New York Times (Links to an external site.)

https://www.youtube.com/watch?v=jvoxEYmQHNM

 

Describe the effects of sample size on sample distributions.  Do you think there is an “ideal” sample size?  Is there a way to check to make sure your sample size is large enough?  Why wouldn’t you want to use a REALLY large sample size?

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