What percentage of students are enrolled in between 12 and 18 credits?

Q: The state education commission wants to estimate the fraction of tenth grade students that have…

A: Population is the set of all objects of interest. For statistical studies, the complete population…

Q: 4. Based on the survey conducted to 1200 respondents, I out of 3 Filipinos can't live without cell…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A:

Q: $3.25 in dimes and nickels, were distributed among 45 boys.  If each received one coin, how many…

A: It is given that, $3.25 (in dimes and nickels) are distributed among 45 boys.

Q: 7. What is the value of SSx? (SHOU

A: We have to calculate the SSx for the correlation study.

Q: The five-number summary for scores on :a statistics exam is .and 97 83 ,77,68,35 In all, 196…

A: The five-number summary is, minimum value, lower quartile, median, upper quartile and maximum value.

Q: 5. In a shipment of 750 computers, 75 were found to be defective. What percent of the shipment of…

A:

Q: 11) According to-the given data, how many of the passible sandwich combinations include either roast…

A: There are 5 kinds of beef and 4 types of cheese. If roast beef or salami is selected then there are…

Q: 1. A local news report claims that 40% of the vehicles on the freeways are vans or SUV's. You go to…

A:

Q: 13. Market research statistics show that 39% of U.S. households own dogs, 34% own cats and 23% own…

A:

Q: (ii) How many appendectomies lasted at least two and a half hours? (iii) How many appendectomies…

A: Minutes freq(f) rlt freq(f/n) Cumulative freq Percentage Cumulative freq 110 - 120 2 0.08 2 8…

Q: A quality control process finds 37.2 defects for every 9,300 units of production. What percent of…

A:

Q: - When the deposite of efflorescence is more than 10 percent and less than 50 percent of the exposed…

A: When the deposite of efflorescence is more than 10% and less than 50% of the exposed area of brick ,…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Solution: B. From the given information, confidence level is 0.99, p=0.92 and E=0.02.

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: The margin of error (E) is 0.04 and the confidence level is 0.90.

Q: . How many students obtained scores between 74.5 to 84.5? . How many students obtained scores…

A: Here Given  The frequency curve of the Scores obtained by students

Q: Eight hundred insects were weighed, and the resulting measurements, in milligrams, are summarized in…

A: The whiskers of the box plot indicate the upper and lower quartile. The lowest and highest line of…

Q: 4) 57% of kids can't wait for spring break. How many kids on average would we need to survey to find…

A: Geometric Distribution: Let us assume there is a sequence of trials, each having two outcomes, say…

Q: (a) What percentage of people has an IQ score between 90 and 110? (b) What percentage of people has…

A: Given that  Mean = 100 and  SD = 10

Q: The Zombies are back!! In a second community, where 1,800 individuals live, a zombie problem began…

A: Step 1:   Given, total population =1800 Residents died and come back as zombies by the end of first…

Q: If 30.1 out of every 100 pregnant women in Indiana deliver their babies by C-section, how many…

A:

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: The margin of error (E) is 0.03 and the confidence level is 0.95.

Q: 2. A shipment of 320 cell phones and radar detectors Wer On the insurance claim, the shipper stated…

A: We can solve the question as below.

Q: Each day, a weather forecaster predicts whether or not it will rain. For 80% of rainy days, she…

A:

Q: 4. A private opinion poll is conducted for a politician to determine what proportion of the…

A:

Q: In a village actually involved by anthrax, 70% of the goats were attacked, 85% have been inoculated…

A:

Q: An estimated 333 out of every 252525 men are left-handed. What percent of men are left-handed?

A:

Q: a. How many welders were studied? b. What is the class interval? c. About how many welders earn less…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: 4. The percentage of CSUN freshmen who graduate from CSUN within 6 years is 55%.…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: a What percent of the recruits are between ages 23 and 29 What is the probablity that a recruit is…

A: here from given information mean = 23  standard deviation = 3 here use standard normal distribution…

Q: You want to estimate the proportion of home accident deaths that are caused by falls. How many home…

A: Formula for the sample size needed to estimate a population proportion is

Q: ountry

A: The mortality rate under one month is 2.5 per thousand . The mortality rate up to two months is 6…

Q: A survey of 600 school employees yielded the following information: 325 were instructors, 442 were…

A: Given data, instructors= 325 full-time faculty=442 instructors were full-time faculty=255   No of…

Q: We take a coin and flip it 10, 000, 000 times. We notice that 6, 010, 375 times it landed on heads.…

A: The coin is flipped 10,000,000 times and it lands on head 6,010,375 times.

Q: 5) At Bill's community college, 41.7% of students are Caucasian and 2.7% of students are Caucasian…

A: Given that 41.7% of students are Caucasian and 2.7% of the students are Caucasian math majors.…

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: 2: The median age of the children is: 29 30.5 28.5 28

A: Given ages are, 36,42,18,32,22,22,25,29,30,31,19,24,35,29,26,36,24,28   Sort the data in Ascending…

Q: 1.) I want to estimate the proportion of adults who like sci-fi movies. How many people should I…

A:

Q: 14. Information about purchases I make in cash or with a checking account appear on my credit…

A:

Q: Last year 46% of business owners gave a holiday gift to their employees.  A survey of business…

A: Consider that p is the true proportion of business owners plan to provide a holiday gift to their…

Q: attacked and 85 per cent have been inoculated with vaccine ; what is the If in a village actually…

A:

Q: 9. There were 35 students signed up to go on a field trip. On the day of the trip only 28 students…

A: Given -  Total number of students signed up to go to trip = 35 Students present in trip = 28

Q: 4. The mean weight of five complete computer stations is 167.2 pounds. The weights of four of the…

A: Formula : x̄=Σx/n

Q: A programmer is planning to develop a new sohasem system in planning the operating system he will…

A: Given data: Confidence level = 99% Margin of error = 3 % = 0.03 To find the  required sample size.

Q: A machine puts out 16 imprefect articles in a sample of 500. After the machine is repaired, puts out…

A: If two samples are drawn from different populations, we may be interested in finding out whether the…

Q: 39 The five summary for scores on a statistics exam is 35, 68, 77, 83, 97. In all, 196 students took…

A: Given that, the five-number summary is 35, 68, 77, 83 and 97.

Q: time a 10-year-old American child spends playing outdoors per day is between 19.28 and 24.08…

A: Given Data Lower limit = 19.28 upper limit = 24.08

Q: 2. A survey of 100 students revealed that 82 were in Math and 65 were in English. How many students…

A: A survey of 100 students revealed that 82 were in Math 65 were in English.   We have to find how…

Q: When you collect data from many people to perform analysis, what is the source of such data?

A: The data collected directly from people using facts figures, objects, symbols using the survey…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.