+0  
 
0
1209
2
avatar+546 

6)Find the mean, variance, and standard deviation for each data set. 6. 78 90 456 673 111 381 21

 

10)The Dow Jones Industrial average for the first 12 weeks of 1988: find the mean and standard deviation!: 1911.31  1956.07  1903.51  1958.22  1910.48  1983.26

2014.59  2023.21  2057.86  2034.98  2087.37  2067.14

 

 

12) Th e mean price of the nonfi ction books on a best- sellers list is $ 25.07; the standard deviation is $ 2.62. $ 26.95, $ 22.95, $ 24.00, $ 24.95, $ 29.95, $ 19.95, $ 24.95, $ 24.00, $ 27.95, $ 25.00

 

14)Find the standard deviation for each data set. Use the standard deviations to compare each pair of data sets. fastest recorded speeds of various large wild cats ( miles per hour): 70 50 30 40 35 30 30 40 15 fastest recorded speeds of various birds in fl ight ( miles per hour): 217 106 95 56 65 37 50 31 53 25 25 25

math statistics
 Aug 22, 2014

Best Answer 

 #1
avatar+118667 
+5

Why can't you do these yourself Natasza?

To find a mean you just add up all the numbers and divide by how many there are.  It is another word for average.

The others can be done either by formula or on your calculator.  I expect there are stat functions on the web2 calc but I will admit that I have not looked.

Now, what in particular would you like help with?

 Aug 23, 2014
 #1
avatar+118667 
+5
Best Answer

Why can't you do these yourself Natasza?

To find a mean you just add up all the numbers and divide by how many there are.  It is another word for average.

The others can be done either by formula or on your calculator.  I expect there are stat functions on the web2 calc but I will admit that I have not looked.

Now, what in particular would you like help with?

Melody Aug 23, 2014
 #2
avatar+546 
0

i have a small window of time to do these....i am very grateful for any help. if you dont want to answer them then thats no problem...however, i need them done.

 Aug 25, 2014

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