In Grade 1l-Einstein there are 49 students, where there are forty-one female students. Find the ratio of female students to male students. *

Q: %. The percentage of women that will be able to find a shoe that fits in this store is

A: According to a human modeling project, the distribution of foot lengths of women is approximately…

Q: The average score of boys is 60, that of girls is 70 and that of all the candidates is 64 appearing…

A:

Q: In a certain examination the average grade of all students in class A is 68.4 and students in class…

A: Given  x̄A=68.4, x̄B=71.2, x̄combined=70

Q: The average amount of money held by each child in a group of 5 is $0.50.If one of the children loses…

A: Given that: Total number of child = 5Average money held by each child = $0.50

Q: A researcher at a major clinic wishes to estimate the proportion of the adult population of the…

A: Given that, Critical value: Using the z-table, the critical value at 98% confidence level is,

Q: Assume that the golfer makes 75 percent of putts when they are less than 10 feet and 30 percent of…

A:

Q: Estimate the difference between the proportion of females and males that are very satisfied from the…

A: Proportion of females that are very satisfied with the rooms =number of females that are very…

Q: A high-speed train makes a 450 mile nonstop run between two major cities in / hours. The train…

A: Given A high speed train makes a 450 mile nonstop run between two major cities in 712 hours. The…

Q: The size of Australian workforce grew by 12% between 1991 and 2011. How has the actual number of…

A:

Q: How many people from the community will die from the pandemic if the number of infections increases…

A:

Q: percentage of the total number of shafts will be tolerable?

A:

Q: The half-life of a drug in the bloodstream is 18 hours. if a 1000 mg dose is prescribed, what amount…

A:

Q: A vacuum pump removes one-half of the air in a container with each stroke. After 10 strokes, what…

A: Given that, the vacuum removes one-half of the air in a container with each stroke. Assume that the…

Q: As the number of hours since you ate protein increases from 2 to 2.75 hours what is the average rate…

A: Given: At 2 hours B1=1100 mg/L At 2.75 hours B2=1025 mg/L

Q: Suppose the test for Corona is 99% accurate in both directions and 0.3% of the population is Corona…

A: The Accuracy of the test is 99% both ways that means false positive and false negative percentage is…

Q: Four out of nine dogs weigh less than 20 pounds. What is the decimal equivalent for the number of…

A:

Q: In 1978, the number of high school dropouts in a country was 5217 thousand. By 2006, this number had…

A:

Q: "The central 50% of employees work between 12.5 hours of overtime." C. and

A: Using the given data Find ( c ) The central 50% of employees work between  ? and ? hours of…

Q: A 25-y -year old woman burns 400 – 40t cal/hr while walking on her treadmill. Her caloric intake…

A: Integration

Q: Assume that the golfer makes 75 percent of putts when they are less than 10 feet and 40 percent of…

A: Given: The percentage of putts when they are less than 10 feet is, P(x<10)=75%=0.75. The…

Q: . Determine if the girls' average score in an exam is higher than 600. Th

A:

Q: A man weighing 600 kg has been losing 3.12% of his weight each month with some heavy exercises and…

A: To determine the weight of man after 20 months.

Q: Suppose I decided to decrease the percentage of 80% alcohol to 65% by taking out an amount and…

A: Here we have used amount of water we remove is z ml in one liter.

Q: Assume that the golfer makes 65 percent of putts when they are less than 10 feet and 35 percent of…

A:

Q: In 2015, there were approximately 3998000 million births in the US. Find the birth rate in units of…

A: Given information:Number of births=3,998,000 and population size=321,000,000=321,000 thousandNow,…

Q: During the first half of the year, 686 patients were admitted to the cardiovascular care unit. Of…

A: From the provided information, Number of patients who were admitted to the cardiovascular during…

Q: What percentage of calls last less than 4 min?

A: Let X denote the time in which a phone call lasted. Given that X follows N(mean = 6, SD = 2) Then Z…

Q: From the side-by-side boxplots for the heart rate of males and females, do there seem to be any…

A: Box plot is used to  detect whether the outliers presented in the data (or) not and to compare the…

Q: A factory produces bicycles at a rate of 95 + 58812 - - 14t bicycles per week (t in weeks). How many…

A: We have to find the no. Of bicycle

Q: At a class, 80% are female and 40% of the students like swim. Of the students that like swim, 60%…

A:

Q: What is the rate of change (as a %) if the number of employees ina company decreases from 132 to 81?

A: Number of employees in previous=132 Recent numbers of employees= 81

Q: The average age of a group of 8 people is 22. After the oldest person leaves the room the average…

A: We have to find

Q: A cheetah can travel 60 km in 30 minutes. What is the average speed of a cheetah?

A: The average speed formula is: total distancetotal time

Q: Roger worked 9 hours on Friday and 6 hours on Saturday. What is the ratio of the work done on Friday…

A: To solve the following problem

Q: There are a total of 165 students in 7th grade. 33 of those students chose to be fully virtual. What…

A: To find out the percentage of students who are fully virtual.

Q: About how many seconds would it take to breathe one billion times if you were breathing at a rate of…

A:

Q: stimate the proportion of all households that are very satisfied from the house they are living

A: The given data represents the responses of 50 households on their satisfaction level from the house.

Q: There are 3 ounces of sugar for every 2 ounces of flour in a chocolate cake. What is the ratio of…

A: Given problem:- There are 3 ounces of sugar for every 2 ounces of flour in a chocolate cake. What is…

Q: In 2015, the median age at first marriage of U.S. women (27.1years) was_______ percentage less than…

A: From the given information, it is observed that the median age at first marriage of U.S. women in…

Q: the ratio of left-handed players to right-handed players in a baseball league is 2 to 5. There are…

A: Given :  The ratio of left handed players to right handed players is  2:5.               And the…

Q: The concentration ratio of the four largest firms in this industry is 68 percent. (Enter your…

A:

Q: What percent of the phones have a battery life less than 5 or greater than 5.5 hours?

A: As per instruction we have to solve part c.

Q: XYZ Airlines reports that 93.4% of its flights arrive on time. What percent of its flights do not…

A: Event: The collection or the set of outcomes in an experiment is called as an event. Complementary…

Q: Benny is 12 years old and his mom is 48 years old. As Benny and his mom get older, Benny thinks that…

A:

Q: The median annual income for workers aged 25 or older in the United States in 2014 was $48372 for an…

A: Given Data The annual income for an associate’s degree is: A=$48372 The annual income for a…

Q: In 2015, the median age at first marriage of U.S. women (27.1years) was_______ percentage less than…

A: Solution: We are given that in 2015, the median age at first marriage of U.S. women is 27.1 yearsThe…

Q: (a) The value of a car depreciates by 25% in a year. What will a car, currently priced at $43,000,…

A: We will find the price of car after one year

Q: The average grade Mark received on 4 tests was 94. If he drops his lowest grade of 85, what wil his…

A: We have to find

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.