Here are the fuel efficiencies (in mpg) of 12 new cars. 52, 32, 18, 14, 48, 22, 36, 55, 12, 20, 14, 28 What is the percentage of these cars with a fuel efficiency less than 48 mpg

Q: in the U.S, 37% of households have dogs, 30% of households have cats, and 7% of households have both…

A: Addition rule of probability:Addition rule of probability indicates the happening either of the…

Q: A busy grocery store in San Antonio captures the time per item it takes to check out customers…

A: Given Time per Item Scanned (Cashier 1) Time per Item Scanned (Cashier 2) 20 24 10 16 52 19…

Q: In each shipment there is an average of 2%% of defective bolts. How many bolts can be expected to be…

A: (3).   An average of 212% bolts are defective. Therefore 212% of 360 dozen bolts are defective.

Q: Researchers asked 200 families whether or not they were homeowners and how many cars they had. Their…

A: We can answer the question from the table of data as below.

Q: 5. What percent of the sophomores watch TV for at least 15 minutes per night?

A: Following statistics is given for TV time   Minimum = 0 minutes Q1 = 15 minutes Q2 = 60 minutes Q3 =…

Q: In a survey, 100 people were asked if they smoke and whether or not they exercise regularly (more…

A:

Q: A busy grocery store in San Antonio captures the time per item it takes to check out customers…

A: Given data, Cashier 1 Cashier 2 20 24 10 16 52 19 60 55 65 45 58 36 40 5 38 29…

Q: Anna is 3 years old and in the 42nd percentile for height in her age group. What does this mean?…

A: Given: 1)Anna is 3 years old and, 2) In the 42nd percentile for height in her age group. In the…

Q: What is the percentile for Colorado, where 10.1% of the residents are aged 65 and olde

A: From the stem plot, we can see that only 4 of the 50 states (7.0%,8.8%,9.8% and 10.0%) having…

Q: What percentage of the shoppers have an email account

A: In the question it is asked to calculate the percentage of shoppers that have an email account.

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: What percentage of books read 76 books out of 80 total books

A: Solution:

Q: A busy grocery store in San Antonio captures the time per item it takes to check out customers…

A: Hence, Q3 = 49 Standard deviation = 16.7053 Range = 55

Q: A school principal surveys 4 freshman, 4 sophomores, 4 juniors, and 4 seniors. For the situation…

A: We have to find correct answer for given data....

Q: Here are the ages (in years) of 8 professors at a college. 32, 46, 29, 37, 57, 28, 34, 42 What is…

A:

Q: Keiko asked 15 students how many courses they have taken so far at her college. Here is the list of…

A:

Q: n Exton School, 60% of the boys play football and 36% of the boys play ice hockey. Given that 40% of…

A:

Q: The table below shows how many employees owned 0, 1, 2, or 3 cars in a company made up of 15…

A:

Q: A recent study of young executives showed that 30 percent run, 20 percent bike and 12 percent do…

A: Note: Hi there! Thank you for posting the questions. As there are several independent questions,…

Q: A company took a survey about its new product. 7,200 people liked the new product and 800 people did…

A:

Q: At a university 60% of students take a math course, 50% take an English course. Assume Math and…

A: It is given that at a university 60% of students take a math course, 50% take an English course. It…

Q: A small insurance company is known for providing automobile insurance but also provides homeowner's…

A: Null Hypothesis: H0: There is no association between whether an automobile insurance customer has…

Q: Find the 20th and the 75th percentiles for these weights?

A:

Q: What proportion of Canadians spend between 8 and 16 hours watching Netflix per month? What…

A: Solution

Q: In 2015, the median family income in the United States was $66,650. (Source: U.S. Census Bureau) If…

A: Given: Median = $66,650, 90th percentile = $178,500.

Q: In a school band of 24 students, 9 students play brass instruments. What percent of the members pla…

A:

Q: There are 20 fruits in a bowl. And 6 of them are apples. What percentage of the bowl are apples?

A: the formula to find the percentage is  percentage(%)=partwhole×100

Q: Following are the number of grams of carbohydrates in a sample of 12-ounce espresso beverages…

A: Given data represents the number of grams of carbohydrates in a sample of 12-ounce espresso…

Q: A parts store sells both new and used parts. Sixty percent of the parts in stock are used. Sixty-one…

A: Let,P(u)= percentage of used stockP(d)=percentage of defective stock.P(u U d) = percentage of used…

Q: Brad and Lena are recording their classmates' eye color for a statistics assignment. In Brad's…

A: Brad's class: green-eyed students = 3 total students = 25 ratio(A) = 325     Lena's class:…

Q: A long distance race begins with 28 runners from Team A and 28 runners from Team B. 4 runners from…

A: We have to solve given Questions.

Q: A seaside resort along the Pacific Ocean is equipped with an electronic shark detection system that…

A: Since multiple questions are given first question is answered step by step. Kindly repost for more…

Q: What percentage of people are men who like movies?

A:

Q: Assume that 30% of city employees in Carson City ride the bus to work. Answer the following…

A:

Q: n the data set 2,8,10,85,12,7,5,3,10,3,9,4,9, find the 3rd decile

A: Total data values = 13 Data in ascending order corresponding to the position is written as follows:…

Q: There are 12 boys in a class of 30 students. What percentage of the class is boys?

A:

Q: What proportion of students either own an automobile or lives in a dor

A: From the given information, P(own an automobile)=0.60 P(lives in a dormitory)=0.20 P(own an…

Q: 4. A survey shows 47% of movie goers are males. A test is conducted to see if the proportion is…

A: Solution : Null Hypothesis : The hypothesis to be tested is is called as null hypothesis. Generally…

Q: The data represent the number of ounces of water that 26 students drank before donating blood: 8, 8,…

A: data for 26 students is 8 8 8 16 16 16 32 32 32 32 32 32 64 64 64 64 64 64 64 80 80 80 80 88 88 88

Q: A school knows that 38% of its incoming students own a smart phone and a tablet. What percent of…

A: Let S be the set of students with smartphone and T be the set of students with tablet Percentage of…

Q: 35, 10, 40, 40, 20, 10, 15, 14, 18, 35 Find the five-number summary for the data.

A: Given data is appropriate for measures of central tendency and measures of dispersion . to find the…

Q: What percentage of the widow Students are female

A:

Q: Researchers asked 250 families whether or not they were homeowners and how many cars they had. Their…

A: Number of families having two or more cars       = 95 + 85      = 180 So percentage of families…

Q: A newspaper provided a  "snapshot" illustrating poll results from 1910 professionals who interview…

A: Introduction:The 100 (1 – α) % confidence interval for the population proportion, p is: (p̂ –…

Q: Here are the fuel efficiencies (in mpg) of 15 new cars. 49, 35, 17, 21, 27, 23, 45, 50, 39, 51, 41,…

A:

Q: A busy grocery store in San Antonio captures the time per item it takes to check out customers…

A: The objective is to compute mean,median,Quartiles and range ,IQR comment -since you have posted…

Q: According to the U.S. Department of Labor, as of May 2009 the median annual salary for a physical…

A: Assume X be the random variable representing the annual salary of a physical therapist (in dollars).…

Q: What percentage of the widow students are  female

A: Total widowed students=2+3=5Total female students who are widowed=3

Q: Here is a population of scores: 10, 9, 7, 7, 7, 6, 6, 5, 5, 5 A) What is the proportion of X = 9?…

A: The percentile helps to understand the performance of score over other scores. It divides the entire…

Q: The median salary of the 1,073 teachers in a large public school district is $38,850 If the 65th…

A: Given, The median salary of the 1,073 teachers in a large public school district is $38,850. If…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.