Find the weighted average. Weighting: 50% Tests, 30% quizzes, 20% projects Scores are percents Tests Quizzes Projects 92 75 100 87 89 85 67 100 92.5 92 95

Q: After a school field trip, Ben surveyed some Complete the table. Preferred Animal at a Zoo Grade…

A: We need to add the values row wise and column wise to get the totals as shown below

Q: At Jeffrey's Swimwear, 50% of the 18 swimsuit styles are bikinis. How many bikini styles are there?…

A: Given  n=18, p=50%=0.50 Number of bikini=np

Q: A group of students who would like to study for a professional exam registered for a preparatory…

A: From the provided information, The total students are six. Sample size (n) = 6

Q: We have weight and height for 8 people, the data is given below: Weight (kg): 45, 52, 56, 62, 70,…

A: Here data is given for 8 people Weight in kg Height in cm and meter We have to calculate correlation…

Q: me Calculate the value of the Sample Varance Round 1 elecimal place -13₁-13, @21 2₁ -13, 2-9 XX comp

A: Given that data  -13,-13,2,2,-13,2,-9 Sample size n =7

Q: dataset: 8, 3, 8, 4, 5, 6, 8, 8, 7, 8, 9, 7, 5,6, 7, 8, 8, 8, 5, 6, 8 determine what percentage of…

A: The dataset given by, 8,3,8,4,5,6,8,8,7,8,9,7,5,6,7,8,8,8,5,6,8 Formula for percentage of people in…

Q: Percentile: Practice Find the 5th , 50th and 100th percentile of the data 15, 20, 35, 40, 50 What is…

A: We have given that,  The data set is,  15 ,20, 35, 40, 50 Then,  We will find the 5th, 50th, 100th…

Q: On a hockey team, there are 14 players. The captain of the team scored on the team, and less than…

A: Given : There are 14 players Captain of the team scored 35 goals last year, which is more than 10…

Q: 5. Rank each football team by their mean scores. If you could join any of the three teams, which…

A: # we are entitled to solve one question at a time, please resubmit the other questions if you wish…

Q: Find the weighted average. Weighting: 50% Tests, 30% quizzes, 20% projects Scores are percents Tests…

A: Given :  Compute weighted average for waiting 50% texts , 30% quizzes , 20% projects . Scores for…

Q: 16. Saraya surveyed people in her community to find out how many states they had visited. She…

A:

Q: The test scores of 11 students are listed below. Find Q1, Q2, Q3 and the 17th percentile, IQR= Q3-…

A: Note: As you have suggested, we have used Excel formulae to help you solve the question. We have…

Q: Instructions The fuel efficiency, in miles per gallon, of 12 small utility trucks was measured are…

A: Sort the DataFirst, sort the data in ascending order: 14, 21, 21, 22, 22, 24, 25, 25, 25, 25, 27, 33…

Q: Using the Weight Scoring technique, provide the weight scores for each car option. Which car should…

A: Answer:   Total weighted score of car A= (0.3*3) + (0.5*6) + (0.2*4)   = 0.9 + 3 + .8 = 4.7   Total…

Q: Player Batting Average Player A .295 3 Player B 10 Player C 29% The player with the highest percent…

A: convert batting average into a percentage for player A,  a1=0.295 to convert into a percentage…

Q: A student scores in the 70th percentile on an exam. What does that mean? Choose the best answer.…

A: We know that the Percentile is used as a ranking of various students who take an exam. It means that…

Q: According to a polling organization, 22% of adults in a large region consider themselves to be…

A: Given, Test statistic value is 2.73. P-value is 0.003. Level of significance= 0.05 Null hypothesis:…

Q: Find the percentile for the data value. Data set:…

A: Given: Data Set:  Data set: 121,133,125,119,127,129,119,117,124,121,125,135,117,121,123,118;

Q: The data set shows the numbers of flowers that students on a field trip correctly identified. What…

A:

Q: If you want to conduct a study to determine how much people exercise from a certain town, what would…

A: In this scenario, it is appropriate to call randomly selected cell phone numbers of people living in…

Q: Question 12 8 points Save Answ The grades below are from a random Statistics student. Each category…

A: Given data is,

Q: 14. The chart shows the number of each color of marble Kelly found when she opened a box of marbles.…

A:

Q: Different species of elephant seals live in the northern and southern hemispheres. Four male…

A: Given information: Different species of elephant seals live in the northern and southern…

Q: 7. What is the median score achieved by a student who recorded the following scores on 10 math…

A: Median,Q₂ : It is the middle number of the sorted data

Q: exam scores for 20 student are shown below, calculate the percentile for a student whose exam score…

A: Solution-: Given data: 53,53,58,62,62,65,66,68,68,70,71,75,78,79,80,84,89,94,94,96 The sample size…

Q: A survey asked office workers what they like t- do when taking a break from work. Preferred break…

A:

Q: Find the overall score for the student with the following weighted system and average scores. Round…

A: The grades and corresponding weights are tabulated below:

Q: Use the ogive to approximate (a) the number in the sample, (b) the location of the greatest increase…

A:

Q: Can you calculate the grades. The green ones are the grades got on each exam.

A: To calculate the grades of the marks obtained in each exam that are represented by color green.…

Q: Find the mode, median, and mean of the set of scores. (If there is no mode, enter NONE.) 23, 45, 17,…

A: Set of Scores are given as : 23,45,17,20,34,20 We have to calculate Mean, Median and Mode.

Q: What does course median mean on a report card. My mark for the class I am taking is 80% and the…

A: Descriptive statistics

Q: Howards's quiz scores are below. What is the quiz average? 77, 71, 82, 79, 76, 78, 85, 83 O 78.9%…

A:

Q: COLOR THEME O ZOOM 13. Kiara is rolling an 1-6 number cube four times. What is the chance that she…

A: We are asked find the probability.

Q: Find the population mean or sample mean as indicated. Sample: 20, 8, 3, 4, 25 O ... Select the…

A: The given data is, 20, 8 , 3, 4, 25 The data is related to sample The no.of observations is,n = 5

Q: Find the mode: 27, 54, 6, 31, 57, 22, 19 Your answer Find the median: 23, 87, 19, 34, 37, 87,

A: Mode : In the given data, no observation occurs more than once.Hence the mode of the observations…

Q: Represent the data using a sliding bar diagram

A:

Q: Final Grade An instructor grades exams, 50%; term paper, 20%; and final exam, 30%. A student had…

A: For the given data the student’s final average = ?

Q: modernism

A:

Q: iven the set of scores below, find the following: highest and lowest scores range size of the class…

A: Given that data 10, 9, 20, 7, 18, 40, 25, 18, 20, 23 , 4, 1, 49, 25, 33, 23, 19, 23, 47, 33,48, 44,…

Q: What percent of students preferred iced tea?

A: Total number of students = (840+390+830+510+430) = 3000 Number of students who preferred iced tea =…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.