1. The women =s Canadian international world hockey team has the following goals scored againist them for each of the games played so far this year:
Table 1:
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6,4,5,4,2,2,3,5,8,5,1,2,2,2,2,0,10,1,2,2,2,3,4,2,3
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The coach would like to know the following about her team=s efforts this past year:
a) On average, how the team is doing - can you help her out ?
b) What is the median goals scored against them
c) What are the most frequently occurring goals scored against throughout the season(she forgot its name,tell her what it is and give her the answer(s))
d) How disperse is their goal scoring against for this year.
e) She wants to compare this year=s team scoring records to last year=s.Last year=s team had a standard deviation of 1.0 for goal scoring against, with a mean of 4.5. In which year would you say the team is doing better? Why?
f) She examines the original data and wants to know,if she removed the values 8 and 10,what would the mean and standard deviation look like.Provide her with a brief explanation as to why there is a difference between the two sets of results.
2. The following data were presented to the seniors secretariat to describe the number of times seniors exercise in a month for the fall and the winter month of 2016 and 2011.
Table 2:
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2015
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35,30,45,40,40,45,43,26
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2016
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40,45,40,42,40,40,35,40
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a) The senior=s Secretariat has requested a summary report from you for his meeting on Friday.He asked you to include a statement on which of the two years the distribution was the most homogeneous. Can you help him to calculate the relevant statistics to provide him evidence of which year is the most homogeneous?
Multiple choice
Which of the following are consideredstatistics?
a) Rfi from the participants in the population
b) Fi from the sample of participants
c) Mean and median from the sample
d) (b) and (c)
Fill the blanks
A ................. Provides a distribution of variable's value
The bars on a histogram are represented as ..................... because they represent data that are continuous
The number of participants from a sample are represented by ........................... , while the number of participants from a population are represented by ........................................
Percentage in frequency table are also known as ............................. Frequencies
Short answer process
How does one calculate the a mid-x value,?Please discuss the process
After one calculates a mean what are the four steps one needs to curry out to calculate a variance?
When are data considered homogenous?
Symbols
The meaning of each of the following symbols?
∑x =
n =
fi =