A certain test is worth 124 points. How many points (rounded to the nearest point) are needed to obtain a score of 85% (Not 94 points)

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 quiz has 10 multiple-choice questions. Each question has 5  possible answers, one of which is…

A:

Q: a. The proportion of Pennsylvanians with a high school diploma is equal to 0.83. b. The proportion…

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Q: What percent of the respondents have at least one sibling ? 59% of all respondents have fewer then…

A: Given that  # of siblings  0 1 2 3 4 5 Frequency  9 13 13 8 8 9

Q: The planning committee for a class party decided to show a "classic" movie. The table below shows…

A:

Q: Eight hundred student took a 90-point standardized examination. After the examination, the students…

A: Given information: Eight hundred student took a 90-point standardised examination Third quartile…

Q: 10. Ms. Snow decides to give a test worth 90 points and contains 25 questions. Multiple-choice…

A: Let, x be no of Multiple choice questions y be no of word problems   Given, x+y=25 3x+4y=90   x=?…

Q: A group of college DJs surveyed students to find out what music to play for their upcoming party.…

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Q: A survey of 225 residents of a neighborhood indicates that 135 of them are in favor of having a…

A: Given, total residents = 225 135 are in favor of block party.

Q: In nursing, we seldom know the true values or percentages of many illnesses or syndromes. For…

A: The confidence interval is used to get an interval in which the population parameter (unknown) is…

Q: One month is what percentage of a year, given that there are 7 days in a week, 4 weeks in a months…

A: One month is what percentage of a year,  given that there are 7 days in a week, 4 weeks in a months…

Q: Park rangers captured, tagged and released 82 grizzly bears in Banff National Park. A month later,…

A: Given: Park rangers captured, tagged and released 82 grizzly bears.

Q: Four out of five students got As in math. What percent of students got As in math?

A: From the Percentages

Q: When taking a 34 question multiple choice test, where each question has five possible answers, it…

A: Given information- No. of question on multiple choice test, n = 34 Probability of correct answer, p…

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

A: Solution:

Q: . In Exton School, 60% of the boys play football and 36% of the boys play ice hockey. Given that40%…

A: Let us define the events as, A: Boys who play football.B: Boys who play ice hockey. From the given…

Q: If the pipette is set to dispense 200 microliters, what percentage of time will it dispense greater…

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Q: Eight hundred student took a 90-point standardized examination. After the examination, the students…

A:

Q: When taking a 24 question multiple choice test, where each question has five possible answers, it…

A: From the given information,

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

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Q: After three tests, a student has a test mean of 78%. What does the student need on the fourth test…

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Q: A person rolls a 10-sided die once. What are the odds that the number rolled is not greater than or…

A: As per given by the question, What are the odds that the number rolled is not greater than or equal…

Q: n​ 2016, among the top 100 grossing movies in a particular​ country, 16 were rated​ PG-13 and earned…

A: Given Information: Total movies = 100 Number of movies rated PG- 13 and earned over $100 million =…

Q: When taking a 28 question multiple choice test, where each question has five possible answers, it…

A: Given data when taking a 28 question multiple choice test where each question has five possible…

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

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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: A test has many multiple-choice items, each with four answer choices. A student receives 1 point for…

A:

Q: A student has scores of 72%, 74%, and 78% on three exams. What percent score does he need on the…

A: Here we solve the inequality for x . x= score for the fourth exam.

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: Sam received scores of 84,86,83,90 and 87 on five tests. Hola had scores of 90,75,94,68 and 98 on…

A: Now we apply the formula of getting average = Sum of all scores / Total matches playedSo average…

Q: If all scores are of the same frequency, what is the mode? A highest score B middle score C) lowest…

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Q: When taking a 15 question multiple choice test, where each question has five possible answers, it…

A: From the given information,

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

A:

Q: A review sheet for a history test has 10 essay questions. Suppose that the professor picks 3…

A: Given

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

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Q: In a recent survey of 180 people who drink coffee or tea, it was found that 137 drink coffee and 74…

A:

Q: A teacher wants to write an ordered 4-question test from a pool of 12 questions.  How many different…

A: Given Data: The number of question in a pool is: n=12 The number of question required for test  is:…

Q: 35 out of 125 students are in the marching band. What percent of students are in the marching band?

A: Given: 35 out of 125 students are in the marching band.

Q: Part B Which teacher was voted favorite by the greater number of students in the fifth-grade class?…

A: In the fifth grade Class, Total Number of students = 48 Total Number of girls = 25 Total Number of…

Q: Find the point estimate for the population proportion.             A Southern student wants to know…

A: It is given that the sample size (n) is 888 and the number of people spoke 2 or more languages is…

Q: When taking a 17 question multiple choice test, where each question has five possible answers, it…

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Q: The students at Sarah's school voted for a new school mascot. 20 students voted to be The Falcons.…

A:

Q: A survey of 1104 adults nationwide asked, what irks you most about the actions of other motorists?…

A: Percentage is the ratio of people responded tailgators to the total people surved.

Q: What proportion of the population score above an 18 on the ACT? What proportion of students score…

A: Given: Let X denote the SAT score thus, X~ N(500, 1002) Let Y denote the ACT score thus, Y~ N(20,…

Q: In a classroom, 12 students are wearing glasses, while six or not. What percent of the students are…

A: Given data: Number of student with glasses is p=12. Number of student without glasses is q=6.

Q: How high must a vehicle's gas mileage be in order to fall in the top 15% of all vehicles?

A: Let X be the vehicle's mileage. Let μ and σ be the mean and standard deviation of all the vehicles.…

Q: When taking a 27 question multiple choice test, where each question has five possible answers, it…

A: Given information- No. of question on multiple choice test, n = 27 Probability of correct answer, p…

Q: In a sample of 169 students, 16 said they have donated blood. What percent of the students have…

A:

Q: ean 74 and standar viation 3.5. a. What percentage of students got a score of at least 80? b. Given…

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.