MATH 114 Test 1 Liberty University Complete Answers

MATH 114 Test 1 Liberty University Complete Answers

The below shown questions is just one version sample.
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The accompanying table gives the median age of a population between 1920 and 2010. (Half the population is below the median age and half is above the median age.) Choose the type of graphical display that is most appropriate and explain your reasoning. Discuss any interesting features in the data.

Why was this particular display chosen?

Discuss any interesting features of the data. Choose the correct answer below.

Nearly 4 out of 5 people choose vanilla as their favorite ice cream flavor. If 140 people attend an ice cream social, how many would you expect to choose vanilla?

4

Solve for x.

Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

The number of calories you burn depends on your weight. A 140-pound person burns 225 calories during 30 minutes of jogging. Find the number of calories that a 240-pound person would burn during the same activity, assuming they burn calories at the same rate.

How many calories would a 240-pound person burn?

The Gapminder HIV Chart 2009 displays the wealth of various countries (per capita income) and the percentage of adults infected with HIV in the same countries. The size of the bubble is proportional to the actual number of HIV-infected adults. Complete parts (a) through (e) below.

The accompanying line chart shows the major spending categories of the federal budget over the last 50 years. (Payments to individuals includes Social Security and Medicare; net interest represents interest payments on the national debt; all other represents non-defense discretionary spending.) Complete parts (a) through (c) below.

a. Find the percentage of the budget that went to net interest in 2000 and 2012.

Figure 5.31 uses television sets to represent the number of homes with cable in 1960 and 2012. Note that the heights of the TVs represent the number of homes. Briefly explain how the graph creates a perceptual distortion that exaggerates the true change in the number of homes with cable.

Figure 5.31 uses television sets to represent the number of homes with cable in 1980 and 2008. Note that the heights of the TVs represent the number of homes. Briefly explain how the graph creates a perceptual distortion that exaggerates the true change in the number of homes with cable.

Consider the data displayed in the figure below. Complete parts (a) and (b).

a. The bar for girls from country Upper B is more than twice as long as the bar for girls from country Upper C. Can it be concluded that test scores for girls from country Upper B were more than twice as high as test scores for girls from country Upper C? Explain.

b. Assume that the data in the figure represent overall regional differences in performances. Suppose that country G is in the same region as countries Upper B and Upper E. How can the test scores for boys and girls in country G compare?

a. The bar for girls from country Upper E is more than twice as long as the bar for girls from country Upper C. Can it be concluded that test scores for girls from country Upper E were more than twice as high as test scores for girls from country Upper C? Explain.