(e) Percentage of viewers who are 35 to 54 or prefer videos on a mobile or laptop device. Percentage of vievers

Q: In elementary statistics, how do you calculate class width? I don't understand it.

A: According to the given information in this question We need to find that how we calculate class…

Q: find 40 th percentile   10,15,18,16,19,20,24,15,26,20,22,25,28,17

A:

Q: Determine whether you would take a census or use a sampling process to find the average age of the…

A: A survey, which tries to include all of the population units in the sample, is defined as census.

Q: there are 347 people that take a survey and assume that 112 of them are women. what percentage of…

A: The percentage of females in the survey is calculated below:

Q: After examining a child at his 2-year checkup, the boy's pediatrician said that the z-score for his…

A: The given data is as follows:The z-score is 1.33The objective is to complete the sentence.

Q: In a survey 500 adults were interviewed, 150 said they had early medical checkup. Find the 95% for…

A: Givensample size(n)=500No.of adults said they had early medical checkup(x)=150p^=xn=150500=0.30

Q: find out the mode, median and mean  74,78,45,7,9,65,7,2,35,68,45,78,98,99

A:

Q: In a class with 25 student there are 6 student very talentet in the subject of art. What percentage…

A:

Q: An insurance study of 1000 deaths was done to see the causes of the deaths. The study howed that 432…

A: Pie chart: A pie chart is a graphical representation of the complete population into several slices…

Q: 3. In a Gallup Pool, 52% of 1038 surveyed adults said that second hand smoke is "very harmful". What…

A: Following information is given:   Total number of people survey = 1038 Percentage of people who said…

Q: What is the range of the following: 48, 65, 12, 66, 26, 23

A: Given data, 48, 65, 12, 66, 26, 23 Range=?

Q: Find the median 12 ,19,65,58, 9,12

A: It is a single value within the range of data which represents a group of individuals values in a…

Q: Construct 90%, 95%, and 99% confidence intervals to estimate µ from the following data. State the…

A: We have given that,  The data set is,  12.5, 11.6, 11.9, 12.7, 12.5, 11.4, 12.0, 11.7, 11.8, 12.5…

Q: What is the range of the following: 54, 25, 71, 36, 12, 55

A: given that data points: 54, 25, 71, 36, 12, 55 then

Q: A survey of 2390 musicians showed that 398 of them are left-handed. Find a point estimate for p, the…

A: We have find population left handed..

Q: Here are the fuel efficiencies (in mpg) of 8 new cars. 45, 20, 45, 14, 34, 22, 18, 28 What is the…

A: Given information- We have given the data of the fuel efficiencies of 8 new cars (arranged in…

Q: The average (mean) score on an exam was 76.375 in a class consisting of 21 Administration students…

A: From the provided information, The average score on an exam was 76.375 consisting 21 Administration…

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: The top seven movies based on DC comic book characters for the U.S. box office as of fall 2017 are…

A: The ordered data set is shown below: 346, 366, 407, 487, 543, 547, 643.

Q: Report the proportion of the 370 students based on mobile phone brands as a percentage. Apple  269…

A: The percentage of a category can be calculated by dividing the frequency of the category by the…

Q: The following data were collected by counting the number of operating rooms in use at RTM hospital…

A:

Q: What is the mean of 1,-3,4,5,7?

A: Given data, 1,-3,4,5,7   Mean=?

Q: In a recent study, 46% of people enjoy country music.  If 200 people are surveyed about their…

A: Given : Proportion (prop.) of people enjoy country music p = 46% = 0.46 Sample size of people n =…

Q: You survey 100 people and find that 75 of them would prefer to work at home to some extent. When…

A: Given: You survey 100 people and find that 75 of them would prefer to work at home to some extent.…

Q: Eighty- Three doctors working in St. Louis area were surveyed concering their opinions of health…

A: Population: Population is the set of all values in the set of data. Sample: A sample is a set of…

Q: Given the data set \ 50,5,12,13,15,18,22,6\ Determine the 75th percentile.

A: Given that The data are 50,5,12,13,15,18,22,6 75% percentile  Q3=value of (3(n+1)/4)th observation

Q: If five out of every sixteen students prefer to write with pens over pencils, what proportion of…

A: Given that, five out of every sixteen students prefer to write with pens over pencils.The aim is to…

Q: Find the range, mean, mode and median of the following: 60,85,94,74,92,82,85,96,12,79

A:

Q: According to FBI data, 12% of burglaries.   What should we conclude if the detective clears all…

A: Introduction to binomial distribution: Consider a random experiment involving n independent trials,…

Q: Write down the fraction of people in this study who are citizens of Country A and have Blond hair.

A: Black BlondBrown redtotal Country A 10131515060626Country B12522713158541Country…

Q: if the whale is 48 feet is it an outlier?

A: here use basic of Normal distribution

Q: Find median  16,17,35,36,48,39,40

A: Given data: 16,17,35,36,48,39,40 Total number of observations, n=7

Q: what percentage of bus drivers had 3 or more traffics acccidents

A: From the provided information, Sample size (n) = 700 Total frequency of 3 or more traffic accidents…

Q: Here are the test scores for 8 students in Mr. B's class 82, 58, 90, 37, 75, 62, 43, 73 What is…

A: Given data is82, 58, 90, 37, 75, 62, 43, 73sample size(n)=8

Q: A survey of the mathematics faculty at wassamatta university indicates that 9 faculty members are…

A: Given: A survey of the mathematics faculty at wassamatta university indicates that 9 faculty members…

Q: 78th percentile   105,108,120,115,112,116,115,118,119,120,111,125,135,114

A:

Q: age for the 16 countries with over 100 million population (

A: Find the median age for the 16 countries with over 100 million population (besides the US).