Mrs. West taught 120 science students last year. Of these students, 25% earned an A in her class. How many students earned an A?

Q: If I had 1005 apples and Dora took 505 how much do I have.

A: To find the remaining apples

Q: What was the most time a student in this class could have spent watching TV that day?

A: There are 7 students watching for the time interval 30-59 minutes. So maximum students are watching…

Q: On a test, a student got 80% of the items correct. If the Student got 56 items correct, how many…

A: Let x be the items on the test given: 80% of x is 56

Q: If Coleen gets an average of 70.85 for the first four quizzes, what must be her grade for the fifth…

A: Consider that the Coleen gets an average of 70.85 for the first four quizzes. Find the grade for the…

Q: Thirty percent of high-school senior boys play in the school band. If a certain high school has 60…

A: Given: Total boys = 60  Play in the band = 30% = 30/100

Q: How many adults were questioned? What percentage of the adults questioned had 5 children?

A: The given bar graph represents the number of children the adults have in their families. From the…

Q: How many students passed all three exams?

A: here from given information define events and draw venn diagram  student fail in math(algebra) = M…

Q: Braden scored 9 fewer points on his math test than Ava did. If Ava scored an 86, what was Braden’s…

A:

Q: In a mathematics class, eighteen students received an A on the third test, which is 150% of the…

A:

Q: if 26,000 people make up 16% of a population, what is the total population? show how you get your…

A:

Q: 1. If you bought 10 tickets to the movies and gave some away, how many could you have left? 2. If…

A: When we remove some amount from a fixed amout, there is some reduction in the fixed amout it mean it…

Q: A concert manager counted 300 ticket receipts the day after a concert. The price for a student…

A: Given that A concert manager counted 300 tickets receipts the day after concert  The price for…

Q: if i have a 73.8 average in math, and I get a 30% mark in my last test, what we

A: Introduction: a number obtained by multiplying two or more quantities and then dividing the total by…

Q: Mr. Akika has 45 17​-cent and 31​-cent stamps all told. The stamps are worth ​$11.85. How many of…

A:

Q: a survey found that 75,000 people own a car. This was 75% of the respondents in the survey. What was…

A: Given data: The given people that own a chair are C=75,000. The given percentage is p=75%.

Q: Rochelle’s daughter is 11 years old. Her son is 3 years younger. How old is her son?

A: Age of Rochelle's daughter=11 yrs  Her son is 3 yrs younger than her daughter We need to find the…

Q: Vonna scored 39 goals in her soccer kicking practice. If her success-to-failure rate was 13:12, how…

A:

Q: If you count from 10 to 120, how many 5's will you find along the way?

A:

Q: In a mathematics class, 21 students received an a on the third test, which is 175% of the students…

A:

Q: For a particular event, 673 tickets were sold for a total of $5103. If students paid $6 per ticket…

A:

Q: Lina has a China figurine, a glass figurine, and a soapstone bear. In how many ways can she choose…

A: Lina has a China figurine, a glass figurine, and a soapstone bear.

Q: Susan scored 82%, 75%, 77%, and 85% on the first four tests. What must she score on the fifth test…

A:

Q: 15 of the 50 students in the cafeteria were eating broccoli. What percent of the students ate…

A: Given : 15 of the 50 students in the cafeteria were eating broccoli.

Q: On four exams,Wallace's grades were 79,93,91 and 68. what grade must he obtain on his fifth exam to…

A: Let Wallace's grade in the 5th exam be x.

Q: How many different outfits could you wear if you were to select from four sweaters, six pairs of…

A:

Q: In a poll of 2600 adults in a certain country, 1742 of the adults said that they had online access…

A:

Q: or a particular event, 697 tickets were sold for a total of $5250. If students paid $6 per ticket…

A:

Q: Mr. Powers gave a coin to each of the 25 children who came to his door for a treat last Halloween.…

A: Let the number of dimes be d and number of nickels be n.Given total number of coins are 25.Hence,d +…

Q: A concert manager counted 350 ticket receipts the day after a concert. The price for a student…

A:

Q: Chris was given a large bag of cookies and ate one third of the cookies before stopping as he was…

A: It is a straight forward question. What wr have to do is,  suppose the amount in the beginning and…

Q: Out of the 2,503 visitors at an art exhibition, 879 were men, 1,118 were women, and the rest were…

A:

Q: Ben is studying photography, and he was asked to submit 6 photographs from his collection to exhibit…

A: Combinations: The number of combinations of r items selected from n items is, nr=n!n-r!r! Ben has 15…

Q: A librarian noticed that 60% of seventh graders checked out fantasy books. About how many of 240…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: need to know how many antique coins he found?

A: From the above solution ,  Total coins = 180  Newer coins  = 135

Q: 4 were on time and 2 were late, how many of the next 12 trains would you expect to be on time?

A: The probability that the train would be on time is, Pon time=46=23 The probability that the train…

Q: The football game was attended by 237 people, down 40% from last week. How many people attended last…

A:

Q: Of the 600 people at a music festival, 420 had attended the previous year. How many people out of…

A: Assume x = no. out of 100 Given that 420 people out of 600 attended festival last year

Q: A book has 625 pages, David has red 132 of the pages, Ana has red 134 of the pages and Lucas has red…

A: Total number of pages (T.P)=625 Number of pages read by David (DP)=132 Number of pages read by Ana…

Q: O A 20-pound turkey serves 28 people. How many people will a 30-pound turkey serve?

A:

Q: If Matthew scored an 15 points per basketb played 24 games in or how many points did the season?

A: We have to find out score

Q: How many cars are in the lot?

A:

Q: opponents scored 38 points, how many points did Bigtown score?

A: Ratio is defined as the quantitative relation between two amounts showing the number of times one…

Q: Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She…

A: Here it is given that  No of Samples (n) = 44 Sample mean (x) = 5.1 Standard Deviation (s) = 3.5

Q: In a poll of 2300 adults in a certain country, 1426 of the adults said that they had online access…

A: In a poll of 2300 adults in a certain country, 1426 of the adults said that they had online access…

Q: A survey was conducted to determine the number people who own different styles of vehicles. The…

A:

Q: Of the 300 homeowners researched, how many people had credit scores at least 720 at the time of…

A: The joint probability distribution of mortgage and credit score is given. From the joint…

Q: The school store sold 83,299 pencils the first week of school and 92,185 pencils the second week of…

A: The school store sold 83,299 pencils the first week of school and 92,185 pencils the second week of…

Q: How many students participated in debate team?

A: It is given that Let, A represents number of students participated in maths club B represents number…

Q: A hospital report indicates 25% of its patients had an MRI in January. If 1,060 patients were…

A: It is given that the number of patients is 1,060 and the percentage of patients had an MRI in…

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.