Question

The following table gives the number of dog bites reported to the police last year in six cities.

City	Number of Bites
Center City	50
Elm Grove	36
Franklin	45
Bay City	33
Oakdale	8
Sand Point	4

a. What is the variable for this data set?

The variable for this data set is the

number of dog bites in a specific citynumber of dog bites reported last yearname of each city included in the table

.

b. How many observations are in this data set?

There is/are  observation(s) in this data set.

c. How many elements does this data set contain?

There is/are  element(s) in this data set.

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Answer 1

a) We are looking at the number of dog bites reported in each city, therefore the variable in the data set here is the number of dog bites in a specific city.

Note that there is no year related data here.

b) The total number of observations in the dataset is computed as the set of measurements that are collected for a particular elements which is each city in this case. As we are collecting for 6 cities, therefore the number of observations here is given as 6.

c) The number of elements are the number of cities which is 6 here. Therefore there are 6 elements in the dataset here.