ou and your friend are among several candidates running for class president. You estimate that there is a 45% chance you will win and a 25% chance your friend will win. What is the probability that you or your friend win the election?

Q: There are 5000 people in a village. 2000 were diagnosed sick. I am wrong 20% of the time. If you are…

A:

Q: If you were to select one card randomly from a single deck of 52 card what is the probability of…

A:

Q: If 14% of active duty soldiers in the U.S. Army are women, find the probability that if four…

A: Let X represent the random variable   n=4 p=0.14   X~ Binomial (4, 0.14)

Q: An office has 14 men and 13 women employees.  Three employees are picked at random for a trip to…

A:

Q: A bag contains 4 red marbles and 7 blue marbles. You randomly pick a marble, return it to the bag,…

A: The number of red marbles is 4 and the number of blue marbles is 7.

Q: You roll a​ six-sided die. What is the probability of rolling a 6 or a number greater than 3? What…

A: We want to find the probability

Q: According to a survey of American households, the probability that the residents own 2 cars if…

A: According to the provided data,

Q: If you flip a coin 3 times, what is the probability of getting two heads?

A: If you flip a coin 3 times. Using Probability formula,

Q: Charlie fills out six applications. What is the probability that none of the companies calls her for…

A: here given 28% chance of getting job interview if she fills out an application p =.28 q = 1-p = 0.72…

Q: If the probability that the Yankees will win a baseball game is 60%, find the probability that the…

A: The probability that Yankees will win a baseball game is 60%, that is PWinning=0.60.

Q: A student has a 30% chance of getting a particular professor for a class. What are the odds of…

A: From the provided information, There is 30% chance a student getting a particular professor for a…

Q: Suppose that 44% of people have dogs. If two people are randomly chosen, what is the probability…

A: It is given that, 44% of people have dogs. It means, probability that a people have dogs= p = 0.44…

Q: Five years after 650 high school seniors graduates, 400 had a college degree and 310 were married.…

A: Given: n(total) = 650 n(College) = 400 n(married) = 310 Half of college students are married.

Q: A sleep clinic sees 10 new patients a day. Approximately 45% of patients are diagnosed with sleep…

A: given data  sample size (n) = 10 P(disgnose with sleep apnea) = p = 0.45 x = no. of patients have…

Q: 3 An animal shelter has a 61% adoption rate for puppies. Of all puppies in the shelter, 77% live to…

A: The probability of selecting two items whos individual probability are p and q is given by; P(x)=p·q

Q: John rolled a pair of dice. What is the probability that they would sum to 6?

A: In general, there are 36 possible outcomes when rolled a pair of balanced dice.

Q: A bag of marbles contains six red marbles, five green marbles, and three yellow marbles. If you…

A: We have given that Number of red marbles = 6  Number of green marbles = 5 Number of yellow marbles =…

Q: If 15% of students like tennis and I expect 500 new students on campus what is the probability that…

A: Probability that students like tennis, p=15% = 0.15 q=1-p= 1-0.15= 0.85 Sample size n=500…

Q: A history class is comprised of 5 female and 10 male students . If the instructor of the class…

A: Given: Number of females = 5 Number of males = 10 Total number of students = 5+10…

Q: Steve has 12 biscuits in a tin. There are 5 digestive and 7 chocolate biscuits. Steve takes two…

A: Given that, Total number of biscuits = 12 5 digestive biscuits and 7 chocolate biscuits We to find…

Q: Three Hatfields and five McCoy's are up for 3 construction jobs in Williamson. What is the…

A: The number of Hatfields = 3The number of McCoy's = 5Total number of construction jobs in wiliamson =…

Q: open up a bag of M&M's to discover 48 pieces of chocolate. 11 of the pieces are blue. If I…

A: Total chocolate are 48 11 pieces are blue

Q: A student has a 40% chance of getting a particular professor for a class. What are the odds of…

A: Step 1: Identify the formula for odds given probabilityOdds (A) = P (A) / [1 - P (A)]  Step 2:…

Q: Billy selects some cards from a standard 52 card deck.  What is the probability that he selects 1…

A: Given data: The total numbers of cards in the playing deck are n=52. The numbers of hearts are h=13.…

Q: You have a homework assignment that contains 12 questions. Your instructor will grade a set of 5…

A: Given: Total number of questions, n = 12            5 questions would be graded Part 1: The total…

Q: If the probability that you get a grade of "A" in this class is 90%, find the probability that you…

A: Given information Probability that you get a grade of "A" in this class p = 0.90

Q: The probability that a high school student get less than 5 hours of sleep on average is 35.2%. The…

A:

Addition Rule of Probability

It simply refers to the likelihood of an event taking place whenever the occurrence of an event is uncertain. The probability of a single event can be calculated by dividing the number of successful trials of that event by the total number of trials.

Expected Value

When a large number of trials are performed for any random variable ‘X’, the predicted result is most likely the mean of all the outcomes for the random variable and it is known as expected value also known as expectation. The expected value, also known as the expectation, is denoted by: E(X).

Probability Distributions

Understanding probability is necessary to know the probability distributions. In statistics, probability is how the uncertainty of an event is measured. This event can be anything. The most common examples include tossing a coin, rolling a die, or choosing a card. Each of these events has multiple possibilities. Every such possibility is measured with the help of probability. To be more precise, the probability is used for calculating the occurrence of events that may or may not happen. Probability does not give sure results. Unless the probability of any event is 1, the different outcomes may or may not happen in real life, regardless of how less or how more their probability is.

Basic Probability

The simple definition of probability it is a chance of the occurrence of an event. It is defined in numerical form and the probability value is between 0 to 1. The probability value 0 indicates that there is no chance of that event occurring and the probability value 1 indicates that the event will occur. Sum of the probability value must be 1. The probability value is never a negative number. If it happens, then recheck the calculation.