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Question 1)The complete collection of all entities we are interested in studying is called the sample

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Question 1)The complete collection of all entities we are interested in studying is called the sample.

 

 

 

 

 

Question 2

The following graph illustrates the distribution of letter grades for a FIU Course in a class of 250 students.

Based on this information, how many students had either As or Bs as their letter grade ?

 

Question 3

 

Each day, the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions. Saturday's cumulative frequency ogive follows.

The total number of sales transactions on Saturday was _____________.

 

Question 4

 

As part of a survey of college students a researcher is interested in the variable class standing as a numerical value between 1 and 4.  She records 1 if the student is a Freshman, a 2 if the student is a sophomore, a 3 if the student is a junior, and a 4 if the student is a senior. The level of data measurement for the variable class standing is

 

Question 5

 

The following boxplot illustrates the total scores for a sample of 60 students.  According to the graph, how many students had scores 70 or lower ?

 

Question 6

 

The following boxplot illustrates the total scores for a sample of 60 students.  According to the graph, how many students had scores above 70  ?