BUS 204 Week 2 Quiz

BUS 204 Week 2 Quiz | MiraCosta College

Question 1

A common rule of thumb for determining how many classes to use when developing a frequency distribution with classes is:  

between 5 and 20 classes.  

equal to 0.25 times the number of data values.  

no fewer than 6 classes.  

at least 10 classes.

Question 2

A histogram is used to display which of the following characteristics for a quantitative variable?  

The approximate center of the data  

The shape of the distribution 

The spread in the data 

All of the above. 

Question 3

Which of the following is a reason for constructing a joint frequency distribution?  

To show the average of two variables  

To help analyze the relationship between the two variables  

To determine the trend between the two variables 

To measure the spread between the two variables 

Question 4

One of the key differences between a bar chart and histogram is:  

the histogram shows relative frequency while the bar chart shows frequency.  

a bar chart is used to display a categorical variable and a histogram is used to display the distribution of a quantitative variable.  

the histogram contains gaps between the bars and the bar chart does not.

the bar chart must be vertical while the histogram must be horizontal.

Question 5

The city counsel has just voted to pass the city's budget for next year. If you were writing a report describing the budget so the citizens could understand how the total tax dollars will be spent, which of the following graphs might be most appropriate?

Scatter diagram  

Ogive 

Histogram 

Pie chart 

Question 6

To show how the price of a stock has changed over the last 3 months, the best type of chart to use is:

a histogram.  

a bar chart.  

a pie chart.  

a line chart.

Question 7

The managers at Harris Pizza in Boston have tracked the tips received by their drivers along with the total bill to the customer. An appropriate graph for analyzing the relationship between these two variables is:

a scatter diagram.  

a pie chart.  

a line chart.  

a histogram.