Problem 433

Use the graph, showing the yearly food costs of a family.     Solution:-   Yearly food cost means find mean Mean= Here sum of values=9+9.5+10+11+10.5+9.5+10=69.5 Number of terms=7 Mean=$\frac{69.5}{7}=9.93…

Problem 432

The pie chart shows the distribution of a person’s total yearly income of x So   x*100/36000=8 Cross multiply 100x=8*36000 100x=288000 X=288000/100 X=$2880  

Problem 428

  Find the first and third quartiles, Q1 and Q3, of the following set of numbers. 0.16, 0.08, 0.27, 0.20, 0.22, 0.32, 0.25, 0.18, 0.28, 0.27   Solution   First…

Problem 425

Use the following to answer questions A-B:   Continent or Region Land Area (1,000 mi2)  % of Earth Population1900 Population1950 Population2000 North America   9,400  16.2 106,000,000 221,000,000 305,000,000 South…