20 randomly selected students were asked the number of movies they watched the previous week. The results are as follows: # of Movies 0 1 2 3 4 5 Frequency 3 1 4 6 2 4 Round all your answers to 4 decimal places where possible. What percent of the respondents watched at least 4 movies the previous week? % 80% of all respondents watched fewer than how many movies the previous week?

Q: Ell surveyed some teenagers and adults on whether they prefer apples, oranges, or bananas. His…

A: The given table is -

Q: What percentage of those who play guitar, also play piano given the following information. 18…

A: What percentage of those who play guitar, also play piano given the following information. 18 - play…

Q: A statistics professor made the following histogram for the scores on her class’s first exam.   If…

A: From the Histogram, the scores and the corresponding frequencies are, Given that the passing score…

Q: A group of students were surveyed about the number of siblings they have. The frequencies and…

A: Solution: From the given information, the table of frequencies and relative frequencies of their…

Q: Match these values of r with the accompanying scatterplots: - 1, -0.994, -0.423, 1, and 0.772. W…

A: Solution If the increase in one variable will result increase the in other variable then they are…

Q: A math class got the following scores on a test. What percentage of students received a score of 85…

A: From table Cumulative frequency for score below or 85 is 9 Total students=14

Q: For the 20 test scores shown, find the percentile rank for a score of 88. 72 63 92 74 86 50 77 82 98…

A:

Q: .2 mn Mun 177 FOR the scores in the follawne table, what is the value of 2. 1 3. 2. 2.

A:

Q: The chart below shows the grade distribution on a quiz in one of my classes. If there are 34…

A: Solution: The objective is to find the number of students who scored A grade

Q: For the scores in the following table. what is the value of EX O 225 O 20 O 05

A:

Q: A cell phone manufacturer makes cell phones, where 8 out of 6 are defective. What is the frequency…

A:

Q: 50 part-time students were asked how many courses they were taking this term. The (incomplete)…

A: From the given information, # of courses Frequency Relative Frequency=frequency/Total frequency…

Q: III. A student in Statistics class was able to obtain the following score. Average Quiz =95 Mid-term…

A: Note that, student got 95,76,84 in three exams where each of the three exams have equal…

Q: In a national survey college students were​ asked, "How often do you wear a seat belt when riding in…

A: The objective of the question is to understand the frequency distribution of the responses to the…

Q: In a student survey, sixty part-time students were asked how many courses they were taking this…

A: Solution: From the given information, total number of part-time students is 60.

Q: The values listed below are waiting times (in minutes) of customers at two different banks. At Bank…

A: Given Data for Bank A6.4,6.6,6.7,6.8,7.1,7.3,7.5,7.9,7.9,7.9sample size(n)=10confidence level=95%

Q: What percent of students take exactly one courses? %

A: Given that, No. of part-time students (n) = 50 To find the frequency, relative frequency, and…

Q: A quiz was given in a nursing class. The results of scores and number of students achieving the…

A:

Q: Students were asked how many minutes did they spend studying for Test 1. The following histogram…

A: Given:

Q: In a student survey, fifty-two part-time students were asked how many courses they were taking this…

A: Total number of part time students, N = 52 The frequency of student take the course 1 is,

Q: College students were given three choices of pizza toppings and asked to choose one favorite. The…

A: It is given asThe total number of students = 259No. of junior students = 67No. of students having…

Q: YOU ASKED 50 COLLEGE STUDENTS HOW MANY PETS THEY OWN. WHAT IS NOT A POSSIBLE SCORE FOR A RANGE FOR…

A: According to the provided information, The number of pets that any of the college student own should…

Q: Every year, the students at a school are given a musical aptitude test that rates them from 0 (no…

A:

Q: sample proportion is p= und to three decimal places as needed.)

A: Given Number of sample of teenagers between 13 to 17 year of ages(n)=280

Q: 0 part-time students were asked how many courses they were taking this term. The (incomplete)…

A: Given information: It was stated that part-time students were asked how many courses they were…

Q: evelop a point estimate of the proportion of teens aged 13 to 17 who say social media makes them…

A: Sample size n=743

Q: The following variable represent numbers, ranked from lower to highest A B C D E. What is the median…

A: There are total 5 numbers in the given data A B C D E. So thee median will be 5+12=3rd value.

Q: 50 part-time students were asked how many courses they were taking this term. The (incomplete)…

A: It is given that the sum of frequencies is 50. Then, the blank in the column of frequency is…

Q: A 20-minute consumer survey mailed to 500 adults aged 25-34 included a $5 Starbucks gift…

A: Given: Total adults = 500 A 20-minute consumer survey mailed to 500 adults aged 25-34 included a $5…

Q: Calculate the coefficient of determination, r2r2. Round your answer to three decimal places.

A: First we insert the given dataset in R studio as,

Q: This equation represents the outcome of heads when three coins were flipped in 50 trials: 0.8+1.18…

A: Solution:   Three coins are flipped 50 times  The possible values of heads are 0,1,2 and 3  n = 50…

Q: Suppose that 18% of a random sample of 2307 Miami residents said that they will donate blood in…

A: p =0.18 n = 2307

Q: 6. Five hundred college graduates were asked how much they donate to their alma mater on an annual…

A: Mode: Mode may be defined as the maximum number of observation

Q: The scatterplot illustrates the relationship between distance and success rate of field-goal…

A: Given,

Q: The Test scores of ten students are listed below. Find the median score. 71 67 67 72 76 72 73 68 72…

A:

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.