To receive a C grade, a student must average more than 77 but less than or equal to 85. If Noah received a C in the course and had five grades of 73, 85, 73, 69, and 78 before taking the final exam, what were the possible grades for his final if there were 100 points possible? (Assume all six grades are weighted equally and let x represent the unknown score.)

video gamer believes that team composition greatly affects win rate. To test this idea, the player decides to play 100 matches with teams of 3 colors: Red, Green, and Blue. The player records the number of matches he wins with each team color. Given anecdotal evidence, the gamer believes his red team is the best and therefore will win the most games. He has less experience with his blue and green team and is interested to see if there is a difference between the two. Because the gamer is more experienced with his red team, he plays more matches with that team. The total number of matches played per team color is: Red-50, Blue-23, and Green 27.     a) What is the IV of this experiment? What are the levels of the IV? What is the scale of measurement of the IV? b) What is the DV of this experiment? What is the scale of measurement of the DV? c) Is this a True experiment or not? Explain your reasoning. d) What is the hypothesis of this experiment? Is it directional or nondirectional? e)…

Researchers conducted a study to find out if there is a difference in the use of online-learning by different age groups. Randomly selected participants were divided into two age groups. In the 16 to 29-year-old group, 7% of the 628 surveyed use online-learning, while 11% of the 2,309 participants 30 years old and older use online learning. (Set 1 for 16-29 year old group; Set 2 for 30 years old and older). Find the p-value of 2-prop-z-test.

Suppose 51 percent of the customers at Pizza Palooza order a square pizza, 73 percent order a soft drink, and 47 percent order both a square pizza and a soft drink. Is ordering a soft drink independent of ordering a square pizza?   Yes No

Sally is interested in finding out if the political party affiliation of Americans who are registered to vote is related to whether or not they believe in ghosts. Suppose she finds that, among all Americans who are registered to vote, 31.7% are registered Democrats and 27.6% are registered Republicans. Among all registered American voters, the percent of people who are Democrat and who believe in ghosts is 7.0%, the percent of people who are Republicans and who believe in ghosts is 6.1%, and the percent of people who affiliate with other political parties and who believe in ghosts is 9.0%. Label each branch of the tree diagram with the correct probability value. Political party affiliation Believes in ghosts Yes 0.070 Democrat 0.930 No 0.317 Yes 0.061 0.276 Republican 0.939 No 0.407 Yes 0.090 Other 0.910 No Answer Bank

A poll of students showed that 45 percent liked basketball, 50 percent liked soccer, 40 percent liked football, 20 percent liked both basketball and soccer, 20 percent liked both soccer and football, 25 percent liked both basketball and football, and 10 percent liked all three sports. What percentage of students like only one sport? What percentage does not like any of the three sports? percent of students like only one sport. percent of students do not like any of the three sports.