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Question: A survey conducted asking people, if you could have a new vehicle, would you want a sport utility or...

A survey conducted asking people, if you could have a new vehicle, would you want a sport utility or a sports car? The responses are shown below:

| Sports utility Vehicle (SUV)| Sports car| Total
---|---|---|---
Male| 21| 39| 60
Female| 135| 45| 180
Total| 156| 84| 240

How many males responded to the survey?
A) 21
B) 39
C) 45
D) 60

Explanation

Solution

Here we have to find the number of males from the given data who responded to the survey. We will first analyze the data and count the total number of responses of both males and females. We will find the total number by adding the male who wants a sports car and SUV to find the required answer.

Complete step by step solution:
Here in the data there are only males and females and we are asked to find the total number of males responded to the survey.
The row 1 of the table shows the number of males who have responded if they could have a new vehicle, would they want a sport utility or a sports car.
So, the sum of the row 1 will give us the total number of males responded to the survey and also in the data the total is computed for both the rows and columns. Therefore the total corresponding to row 1is 60 which means only 60 males responded to the survey out of the 240 peoples.
Hence, only 60 males responded to the survey.

So, option D is the correct option.

Note:
Here we have to note that the value of total given in the data is for its corresponding row or column. By directly seeing the data table we can calculate a lot of things very easily. We can also represent the data using the graph type of table. There are two most commonly used graphs i.e. line graphs, bar graphs.
Line graph is the graph in which points are projected in the graph and straight lines are made to join those points and it gives us the picture of variation of that particular data.
Bar graph is the graph in which the data is plotted using the rectangular bars of different heights for different parameters so that it becomes very easy to compare the data. Interpretation of the graph means concluding some results from the data given in the graph.