5. Like most colleges, City College calculates a student's Grade Point Average (GPA) by weighting each grade based on the number of units in the class. The following scale is used to convert letter grades into a quantitative variable: A = 4 B = 3 C=2 D = 1 F = 0 George's transcript shows the following grades. Class Units Grade English 3 B Biology 4 C Geography 3 B Weightlifting 1 A Statistics 4 A German 5 F Calculate George's GPA.

45 people were surveyed at the Sunway Pyramid Mall to investigate coffee preferences. The results of the survey are recorded below. Coffee Type Children Adults Seniors Latte 3 ? Mocha 9 11 a) Determine how many Seniors prefer Latte? Show your work. [A: 1 mark] Your answer locs.google.com/forms/d/e/1FAlpQLSewitqD60pXbHRrH-dmFwuvBFgFL6CNyPNFCrDm7uMzq5u8-A/formResponse 022, 13:32 MDM4U Unit 2 Test 2022S1 Draw and upload the Stacked Split Bar graph * b) Create a Split bar graph for Coffee Type. Include all titles and labels. [A: 4 marks] Legend

The following histogram shows the exam scores for a Prealgebra class. Use this histogram to answer the questions. 24 20 20 16 Frequency 2 8 4 0 70.5 50 Prealgebra Exam Scores Step 2 of 5 Find the upper class limit of the fifth class. 13 9 8 4 75.5 80.5 85.5 90.5 95.5 100.5 Scores

A survey of 800 college seniors resulted in the following crosstabulation (Table 1) regarding their undergraduate major and whether or not they plan to go to graduate school. Please use the information to answer questions 1-3.                                                                 Undergraduate Major  Graduate School Business Engineering Others Total Yes 70 84 126 280 No 182 208 130 520 Total 252 292 256 800   1.What percentage of the students does not plan to go to graduate school? 2.What percentage of the students' undergraduate major is engineering? 3.Of those students who are majoring in business, what percentage plans to go to graduate school?

The following histogram represents the distribution of scores on a ten point quiz. Step 3 of 3: What is the total number of people who made a score between 2 and 4 inclusive? Quiz Scores Frequency 16 14 12 10 0 4- 2- 0 0 13 +2 == 1 2 ו 4 5 Score -~ 96 7 ☐ 8 60 9 10

The last digit of the heights of 67 statistics students were obtained as part of an experiment conducted for a class. Use the following frequency distribution to construct a histogram. What can be concluded from the distribution of the digits? Specifically, do the heights appear to be reported or actually measured? Digit Frequency 0 15 5 5 1 T Choose the correct histogram below. O A. O B. O C. D. 18- 56789 0123456789 ܩܫܠ 6789 123456789 Are the data reported or measured? O A. The data appears to be measured. The heights occur with roughly the same frequency. O B. The data appears to be measured. Certain heights occur a ..

Define the Ordinary Least Squares Estimator? how OLS Estimates the Relationship Between Test Scores and the Student–Teacher Ratio?

6. Imagine that I wanted to test the proposition that people think older politicians are more trustworthy. I recruited an internet sample of 90 people. Each person was asked to read a short article about a hypothetical political candidate. Random assignment determined whether the subjects were told that candidate was 65 or whether they were told that candidate was 35. After reading the article, all subjects used a 10-point scale to rate the candidate on competence, trustworthiness, and likability.   I take the mean values of trustworthiness in each group, perform a difference of means test, and find a test statistic of 1.04. Should I reject the null at the 99% confidence level? Why or why not? What does that mean?

The following table compares the completion percentage and interception percentage of 5 NFL quarterbacks. Completion Percentage 58 61 61 61 61 65 Interception Percentage 4.8 3.8 2.8 1.7 1 Ta Copy Dat Step 1 of 5: Calculate the sum of squared errors (SSE). Use the values bo = 35.4457 and b₁ = -0.5331 for the calculations. Round your answer to three decimal places.

What is the difference between an unbiased estimator and a consistentestimator?