Mrs. A has 76 wonderful seventh graders that she teaches this year. She took a random survey of 20 students and found that seven students like twizzlers, 12 like jolly ranchers, and one does not eat sweets. a. How many students are in Mrs. A's sample? b. How many students are in Mrs. A's population? c. Using Mrs. A's sample, how many students would you estimate prefer jolly ranchers out of the entire seventh grade?

Q: The student government at Nassau Community College has been told that the student population…

A: As due to the honor-code, we are authorized to answer only 3 subparts for each question and that you…

Q: If three out of every eight trick-or-treaters that came to your house last Halloween were dressed as…

A: Simplify to get the answer.

Q: (a) What percent of respondents feel that their body weight is about right? (b) What proportion of…

A:

Q: In a survey of 500 human resource professionals, 70% said that the appearance of a resume is very…

A: Use simple formula

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Q: c. How many of 45 randomly selected employees have a personal messaging frequency less than 170? d.…

A:

Q: The city of Raleigh has 9500 registered voters. There are two candidates for city council in an…

A: Given:In this question we have data about the registered voters of city of Raleigh,Total no. of…

Q: Matilda recently took a statistics quiz in her math class. In one question, 45 of 900 visitors at a…

A: Matilda's error is  D. 900 visitors represents the population.

Q: The International Brotherhood of Slide Whistlers wants to conduct a survey to find what proportion…

A: Let COnfidence interval be 90% Zc=1.645 E=3%=0.03 p=0.5 n=?

Q: ​If, in a random sample of 200 items, 65 are​ defective, what is the sample proportion of defective​…

A: x =Number of defective items n = Sample size

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: ii. If Olivia wants to learn a foreign language to get an idea of how satisfied other students were…

A: iii. Stratified sampling: In stratified sampling the whole population is divided into two or more…

Q: Several students who participated in a study were asked a question about whether or not they have…

A: Class Credit card carrier Not a credit card carrier Total Freshman 45 15 60 Sophomore 32 8 40…

Q: 2. How many different letter arrangements can be made from the letters in the word of STATISTICS?

A: Number of letters in the word STATISTICS = 10 Number of S's = 3 Number of T's = 3 Number of I's = 2…

Q: 5. Several college students are surveyed about their college location and preferred locations for a…

A: Given  total number of students who prefer beach are 91. Total number of students who prefer skiing…

Q: se Brianna's sample to estimate the number of red gumballs in the jar.

A: Given that  Class jar containing 200 gumballs of two different colors  (Red and green) Brianna draws…

Q: The sample space for independent events A and B is 312. If the sample space for event A is 6, what…

A: For two independent events A and B, n(A and B) = n(A).n(B)

Q: If dfw = 50 and dfpet = 4, how many subjects were in each sample? %3D Select one: a. 10 O b. 4 O c.…

A: In question, We have given df(within) = 50 and df(between) = 4. Then we'll find that how many…

Q: The high school principal wants to conduct a survey on student satisfaction for the entire school.…

A: It is an important part of statistics . It is widely used .

Q: A. Teacher John wants to select a sample of 225 learners from the population which are grouped…

A: Given information: The number of sample, selected, n = 225 Total population, N = 35200 City…

Q: A. Teacher John wants to select a sample of 225 learners from the population which are grouped…

A: Sampling is the method to select the sample from the population. the sample is a part of the…

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

A:

Q: In a wildlife preserve, a random sample of the population of 150 raccoons was caught and weighed.…

A: The given set of numbers are  17,19,20,21, 23,27,28,28,28, 32 Totally there are 10 numbers in the…

Q: A group of 15o students were asked whether they have a curfew and whether they have chores at home.…

A:

Q: If eight out of every fifteen trick-or-treaters that came to your house last Halloween were dressed…

A: Total number of trick and treaters is 15x. Total number of trick and treaters who were dressed as…

Q: The Ministry of Health in the Canadian Province of Ontario conducted the Ontario Health Survey by…

A: Stratified sampling :- When we have Homogenous distinguishable sub-groups. Then the population is…

Q: Suppose that in a survey of five-year-olds, 54% liked the letter A, 58% liked the letter B, and 49%…

A: Solution:robability of liking A  P(A)=0.54 Probability of liking B  P(B)=0.58 Probability of liking…

Q: In a survey, 150 shoppers were asked whether they have access to a computer at home and if they have…

A: Here we have to use the concept of percentage.

Q: b. How many subjects did not use marijuana? A total of | subjects did not use marijuana.

A: b. From the information, the data in table format is,   Positive Negative Total Using Marijuana…

Q: Rayann conducted a survey of the cars in four parking lots and wrote the following observations: 15…

A:

Q: What is the margin of error associated with a survey of 1034 college students if we want to be 97%…

A:

Q: a sampling plan, when n

A: n = 50, c = 2, N = 500 and p = 0.01 Pr{d<=2}

Q: Zoe wanted to know how the students at her university might vote in the upcoming election. What…

A: To know which is the most valid statistics  from the given options .

Q: Martha Quinn is interested in the proportion of fast to slow songs she will play today. She takes…

A: We know that Simple Random sampling is a sampling technique in which every unit of the population…

Q: re residents (if any) must I ask, given the fact that (somehow) I know that 62 percent of all…

A: Given: Sample size, n = 32 Probability, p = 62100=0.62 Here the distribution is binomial and for a…

Q: As part of a sixth-grade class project the teacher brings to class a large jar containing 200…

A: Given, Population size = 200 Sample size = 25 Red gumballs = 15 Green gumballs = 10

Q: Cody wants to compare how students in two grades use the school library. For one week, he records…

A:

Q: If you selected a sample of n = 35 from a population whose μ = 56 and σ= 12, what would you expect…

A: Given information: The sample size is, n= 35. The mean of the population is, μ=56. The standard…

Q: If six out of every eleven trick-or-treaters that came to your house last Halloween were dressed as…

A: Given, Dressed as witches [ trick-or-treaters that came to your house last Halloween]= 6/11

Q: (d) Would it be unusual if the sample mean were less than $7700? (e) Do you think it would be…

A: As asked by you I have answered the question (d) and (e). Please find the explanation below. Thank…

Q: Zoe wanted to know how the students at her university might vote in the upcoming election. What…

A: Zoe wanted to know how the students at her university might vote in the upcoming election. We have…

Q: Edison Middle School has 600 students: 200 in grade 6, 200 in grade 7, and 200 in grade 8. The…

A: The question tests your ability to pick a random sample that would satisfy the whole population.

Q: A box truck rental service offers trucks in multiple sizes for people who are moving. If a 10-foot…

A: We have, a box truck rental service offers trucks in multiple sizes for people who are moving such…

Q: It's all about COMBINATION - From a population of 50 households, in how many ways can a researcher…

A: The population is given as 50 and 10 need to be selected. The total number of ways of selecting 10…

Q: Suppose that in a survey of five-year-olds, 42% liked the letter A, 54% liked the letter B, and 47%…

A:

Q: 4. A researcher is interested in the percentage of HIV positive teenagers in South Africa. The…

A: We have given that statement. Here, need to find out that the given statement is true or false.…

Q: The stem and leaf display below gives sample air fare from St Louis to two cities Salt lake city and…

A: Stem and leaf plot: Stem and leaf plot are used to show the frequency with which certain class of…

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A: given out of 40 fans, 6 fans  named Daren as the best player to find from 12000 fans how many say…

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A: Given data: Bag of marbles containing 700 white marbles and 300 red marbles

Q: As part of a sixth-grade class project the teacher brings to class a large jar containing 200…

A:

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.