teacher assigned 35 questions in a test and said that 15 of them will be graded. How many different sets of 15 questions can the teacher choose to grade

Q: A senior inspector will inspect 10 rooms this week. (d) To have a fair representation, how many…

A:

Q: A multiple-choice quiz has 6 questions and5 possible answers per question. How many different ways…

A: We have given that Number of multiple choice questions = 6 Each question has number of possible…

Q: When taking a 20 question multiple choice test, where each question has 5 possible answers, it would…

A: We have n = number of multiple choice questions = 20 p = probability of question correct = 0.20 So…

Q: During second period, mia completed a grammar worksheets. Of the 60 question, mia got 80% right. How…

A: Total number of questions solved by Mia are 60.

Q: What is the value of Ex² for the scores 1, 0, 2, 4? O 21 O 28 O 14

A:

Q: An initial survey was given out to determine shopping preferences and age group. On the survey,…

A: Given that there are 4 shopping preferences and 6 age groups.  Using the fundamental counting…

Q: There were 150 students that were asked about their favorite animal.  23 students chose hamsters, 48…

A: Total students = 150 No. of students who chose hamsters as their favorite animal = 23 No. of…

Q: Annette is surveying people in the city about their interest in a new shopping mall. She found that…

A: Introduction: The percentage is very significant in arithmetic. The base of the percentage…

Q: you need to rank 3 types of coffee. How many ways are there to rank them?

A: The objective of this question is to find out the number of ways to rank 3 different types of…

Q: A student must answer 3 out of 5 essay questions on a test. In how many different ways can the…

A: A student must answer 3 out of 5 essay questions on a test. In how many different ways can the…

Q: 23% of the class was unhappy.  19 students were unhappy. How many students were in the class? Round…

A: To find the total students in the class .

Q: How many values are in the range 35 to 95?

A: Given  Lower value = 35 Upper value = 95

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

A: Solution:

Q: The median age of five people in a meeting is 40 years. One of the people who leaves the room are 60…

A: The median age of five people in a meeting is 40 years.

Q: Please answer step by step. Thank you! Decide the number of possibilities of the given situation:…

A: It is required to pick 3 questions from a bank of 39 questions. n=39 r=3

Q: When taking a 18 question multiple choice test, where each question has 5 possible answers, it would…

A: We have to find unusual number of success.

Q: it is not taking 87 subjects as the answer

A:

Q: A multiple choice test consists of 10 questions. Each question has 5 choices of which one is the…

A: The number of multiple choice questions is 10.

Q: Suppose a questionnaire has 11 questions. In how many ways can the questionnaire be answered if each…

A: A questionnaire has  questions. Each question requires a yes or no response followed by a -part…

Q: A class of 32 students are supposed to take a standardized test. Out of the class, 75% of the…

A: The objective of the question is to find out how many students have already taken the test. The…

Q: You need to rank 2 types of coffee. How many ways are there to rank them?

A: The objective of this question is to find out the number of ways to rank two types of coffee.

Q: You need to rank 4 types of coffee. How many ways are there to rank them?

A: The objective of this question is to find out the number of ways to rank 4 types of coffee. This is…

Q: Each person in a group buys a movie ticket for $12 and a large popcorn for $5.50. What is the cost…

A:

Q: Tiffany answered 90% of the questions on her math test correctly. There were 50 questions on the…

A: Tiffany answered 90% of the questions on her math test correctly. There were 50 questions on the…

Q: How many handshakes are required for a group of 15 people to shake everyone's hand?

A: Given information- We have given a group of 15 people. We have to find no. of handshake required to…

Q: A bag of 10 apples contains 3 rotten apples and 7 good apples. A shopper selects a sample of 4…

A: The problem is asking us to find the number of ways to select 4 apples from a bag of 10 apples, such…

Q: How many people in the survey said they like dogs?

A: here n  = sample size = 500 p = proportion of people like dog  = 0.65

Q: to determine voters' feelings regarding an issue, a candidate asks a sample of people to pick 4…

A: Given:-           The number of 4 different word grouping is possible if the candidate raise a…

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.