Customers at an ice-cream shop took a survey. The results showed that 144 customers rated the shop as being very satisfactory.this number represented 45 percent of the total number of customers who took the survey?

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

A: The total students in the and is 24. The number of students that play brass instruments is 9.

Q: of the pupils who passed were boys. 8 3 In an exam, 75% of the pupils passed. 75 girls passed the…

A:

Q: The salesforce at a certain company successfully closed 94 out of 200 sales calls. What was their…

A:

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 students in Emilio's grade voted to select a guest speaker. 35 students voted for a famous…

A: Given, Total number of students (N) = 500 Number of students who voted for a famous athlete  (n) =…

Q: To be labeled as a jumbo egg, the egg is supposed to weigh 2.5 oz. Priya buys a carton of jumbo eggs…

A:

Q: 70  guests at a hotel called for room service and 255 guests did not call for room service. what is…

A: Given that the total number of guests called for room service  = 70           Total number of guests…

Q: The histograms show the number of buildings above 400 feet in Dallas and Philadelphia. Which…

A:

Q: Robert asked 40 students at his school how many television sets they had at their house. The results…

A:

Q: An outlet store receives a shipment of computers that will be offered at a discount price of $497…

A:

Q: weight-loss program, and she had 15 individuals participating in the program. She weighed…

A:

Q: Henri bought a swim suit at a cost of $8. Which statements are true regarding the cost of the suit?…

A: Given: Henri bought a swim suit at a cost of $8. To Determine: Which of the following statements are…

Q: The teacher asked each of her 18 students if they had a pet. The results showed that 2 of the…

A:

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: There were 80 teenagers in line for tickets to a concert. Forty percent were boys. Twenty-six girls…

A: We have  to find no of boys

Q: loyees. 40% of the employees surveyed were females. The number of

A: According to the sum, A management survey for a company surveyed 235 employees. 40% of the…

Q: Jennifer asked 50 students if they preferred dogs or cats. The table shows the results of her poll.

A: Given that

Q: A furniture company sold 120 pieces of furniture during a sale. 80 of the pieces of furniture were…

A:

Q: When 500 junior college students were surveyed,120 said that they have previously owned a…

A: When 500 junior college students were surveyed,120 said that they have previously owned a…

Q: Carl earned grades of 62, 78, and 89 on four math tests. What is the mean of his grades?

A: The grades earned by Carl are : 62, 78 and 89 The number of grades, n=3 To evaluate : The mean of…

Q: A math teacher gave her class two tests. 70% of the class passed both tests and 80% of the class…

A: Given,  Student passed in first test , Let it be A = 80% . Student passed in second test , Let it be…

Q: Ms. Eisenman wanted to know her average student’s score on the most recent chapter test and what…

A: Ms. Eisenman wanted to know her average student’s score on the most recent chapter test and what…

Q: If a child psychologist wanted to determine if there is a relationship between gender of a child and…

A: Chi-square test of independence should be used here.

Q: A group of high school students were surveyed about their fast food preferences. what percent of the…

A: Consider the provided table, We have to find the percentage of students surveyed were juniors who…

Q: 42% of the tickets sold at an amusement park were discount tickets. If the park sold 150 tickets in…

A:

Q: A survey was given to 90 high school students. They were asked if they preferred fiction or…

A: so, let no. if outdoor Non-fiction be "x" total indoor + total outdoor =9050+ (30+ x )=9080+x=90x=10…

Q: Find the probability of selecting either a non-smoker or a woman when you select a person at random…

A:

Q: Sarah chose to live on the honors floor of her dorm because she was told that the students on that…

A: Null Hypothesis: H0: The mean number of hours is greater than or equal to 11 hours. Alternative…

Q: Juana took a English ACT exam involving 30 reading and 20 writing questions. She got 80% of the…

A: Given: Number of reading questions=30 Number of writing questions=20 Now, Number of questions she…

Q: On Thursday a restaurant served iced tea to 35 of its 140 customers what percent of its customers…

A: Percentage = no. of customers who had ice tea * 100 ÷ total customers

Q: the proportion, p, of people who find relief is lower than 63%.

A: Given : n=215 , X=125 , p0=0.65 , α=0.05 We want to test the claim that the proportion , p of people…

Q: find the proportion that likes pizza.

A: Given : Question number of people who say yes Do you like Burgers ? 44 Do you like pizza ? 39…

Q: Julia ordered a set of beads. She received 90 beads in all. 36 of the beads were blue. What…

A: The total number of beads is 90.

Q: 5. Cecile, a grade four pupil, had four tests in Science. Her ratings were 88%, 92%, 89%, and 93%.…

A: Let X be the random variable that takes the values of ratings in percentage. Let Cecile has a rating…

Q: After doing laundry, harry had 9 black socks, 8 red socks, and 5 white socks jumbled up in his…

A:

Q: What percentage of students completes the test in 45 minutes? b. What percentage of students…

A: (Answer a) Consider X as a random variable that follows a normal distribution with a mean 48 and…

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

A:

Q: The symbol p refers to percentage. O True False

A: We want to tell you above statement is true or false.

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: In an experiment, college students were given either four quarters or a $1 bill and they could…

A: Given table of information is-    Purchased gum Kept the money Students given four quarters 26…

Q: Among survey respondents who thought the economy was getting better, what fraction were Republicans?…

A: Instruction : "I only need help with the last 2 please" Given : Total respondents  =651

Q: The number of passengers using a rail link fell from 190,205 to 174,989. Find the percentage…

A: In this question, we have to find the percent decrease in rail link.

Q: Lana correctly answered 48 of the 60 questions on the math exam what percent of questions did she…

A: Given, Total no of questions=60 No of questions answered correctly=48 percent of questions did she…

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

A:

Q: hair

A: X% of y = x/100 * y

Q: In a packet of 32 smarties, there are 6 red smarties . Write the number of red smarties in the…

A: A percentage of a number is a relative quantity indicating the hundredth part of any quantity. It is…

Q: The chaperones for an upcoming junior high dance want to see which soda to serve. They ask 50…

A: If 32 out of 50 prefer root beer, how many of the 150 people will prefer root beer.

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.