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Chapter 2: Q.10 (page 127)

David County has six high schools. Each school sent students to participate in a county-wide science competition. Table 2.41shows the percentage breakdown of competitors from each school, and the percentage of the entire student population of the county that goes to each school. Construct a bar graph that shows the population percentage of competitors from each school.

Short Answer

Expert verified

The bar graph the population percentage of competitors from each school is as follow:

Step by step solution

01

Content Introduction

A bar graph may be described as a chart or a graphical illustration of data, portions or numbers the usage of bars or strips. Bar graphs are used to examine and assessment numbers, frequencies or different measures of awesome classes of data.

02

Content Explanation

The steps to follow to make a bar graph in Excel is as follow:

  1. Select the data and go to Insert option.
  2. Now under Charts, select bar chart option
  3. Click on the plus sign at right hand side of the bar graph, and mention the Axis, Chart titles, etc.

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Most popular questions from this chapter

Use the following information to answer the next three exercises: Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars. Calculate the following:

median = _______

Use the following information to answer the next two exercises. Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars.

Looking at your box plot, does it appear that the data are concentrated together, spread out evenly, or concentrated in some areas, but not in others? How can you tell?

Park city is broken down into six voting districts. The table shows the percent of the total registered voter

population that lives in each district as well as the percent total of the entire population that lives in each district. Construct a bar graph that shows the registered voter population by district.

Forty randomly selected students were asked the number of pairs of sneakers they owned. Let X= the number of pairs of sneakers owned. The results are as follows:

a. Find the sample meanx炉.

b. Find the sample standard deviation, s

c. Construct a histogram of the data.

d. Complete the columns of the chart.

e. Find the first quartile.

f. Find the median.

g. Find the third quartile.

h. Construct a box plot of the data.

i. What percent of the students owned at least five pairs?

j. Find the 40thpercentile.

k. Find the 90thpercentile.

l. Construct a line graph of the data.

m. Construct a stemplot of the data.

Table 2.72 gives the percent of children under five considered to be underweight. What is the best estimate for the mean percentage of underweight children?
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