Identify the scenario in which a researcher should choose to use a bar graph.1 pointThe university dean would like to show the percentage of students earning various GPA intervals for the graduating class at a local university.A psychology researcher would like to show the percentage of participants who slept for a given number of hours per night, measured in whole hours.A health researcher would like to show the relationship between minutes of exercise and anxiety score.An instructor would like to show the frequency of students’ preference for a take-home or in-class final exam.7.Question 7There is a c

For which data sets would a histogram be better than a bar graph for displaying the information?the number of gymnasts that fall into each of four 5-year age groups at a tournamentthe number of votes each candidate received in a primary electionthe frequencies of electricity outages during a ten-month period at ten different hospitalsthe number of students who obtained percentage scores in the 50s, 60s, 70s, 80s, and 90s on an examthe percentage of daycare facilities that are state-certified in each of ten cities

Manuel wants to use a single graphic to show how the percentage of women in engineering sciences has risen over time. Manuel’s best choice would beGroup of answer choicesA. A bar graph.B. A line graph.C. A pie chart.D. A pictograph.

The number of phone calls received by four participants in a study are asfollows 2, 12, 5 and 7. Let x denotes the number of calls received.10. **Find ∑xA. 676B. 52C. 26D. 22211. **Find (∑x)²A. 26B. 52C. 676D. 22212. **Find ∑x²A. 222B. 676C. 26D. 5213. Which of the following is NOT true of a bar graphA. The height of the bars represents the frequency of the categories.B. Categories are marked on the horizontal axis.C. The bars are drawn adjacent to each other.D. Frequencies are marked on the vertical axis.14. A data set containing information on each member of a sampleor population is known asA. organised dataB. grouped dataC. census dataD. ungrouped data15. Raw data is BEST defined asA. Unprocessed information that has not been recorded or collected.B. Processed information that has not been interpreted.C. Unprocessed information recorded in the sequence in which it wascollected.D. Processed information that has been interpreted.

What does the bar graph show about students social media prefernces? Include details from the graph in your response. Your answer:

When do you use bar graphs? When do you use a histogram? When do you use a line graph? What are the different parts of a line graph? How do you write the title of the graph? How should you write the labels of the axes? How should you do the scale on the axes? What is a trendline (line-of-best fit)?