Medical billing errors and fraud are on the rise. According to one​ study, 4 out of 5 ​times, the medical bills received by patients are not right. Using binomial distribution and rounding to the fourth, 1. If a sample of 11 medical bills is selected, what is the probability that MORE than 7 bills contain errors? 2. What are the mean and standard deviation of the probability distribution?

Q: You are looking to purchase a home in Lancaster, PA. In order to see what the average home will cost…

A: n= 35 Sample size  σ=$226312.40 Population standard deviation

Q: In Binomial Distribution, If q=60% and n=12, then the mean is 0.72. (True or False)

A: Solution: From the given information, q=0.60 and n=12.

Q: What is the sample standard deviation of the following numbers? 8, 3, 6, 2, 1

A: Given: Sample size n = 5 Formula Used: Sample standard deviation s = ∑Xi-X2n-1 Where is a sample…

Q: What is the variance and standard deviation of 2, 4, 5, and 6?

A:

Q: According to Nielsen Media Research 30% of televisions are tuned in to the NFL Monday Night Football…

A: Note: Thanks for posting the question, in subparts (b) and (c), “exactly 5 or the 15 televisions” is…

Q: According to an on-line dating website, 20% of the couples who are in committed relationships met…

A: Percentage of the couples who are in committed relationships met on-line, Sample size,

Q: What are three significant pieces of information we need to know to summarize a distribution?

A: The three significant pieces of information we need to know to summarize a distribution are as…

Q: What is the probability that at least 8 students will be accepted? -What is the probability that…

A:

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: Suppose i have an unfair coin and it lands on heads 75% of the time.  If I flip this coin four times…

A: Obtain the probability of getting only 1 head.   The probability of getting only 1 head is obtained…

Q: What are other sampling distributions for mean?

A: Sampling distributions : The probability distribution of a given statistic based on a random sample.…

Q: find the mean, variance, and standard deviation   Twenty-one percent of U.S. employees who are late…

A: The value of mean is 0.84, which is obtained as follows:

Q: What does standard deviation measure in a probability distribution

A: In simple words, Standard deviation measures the variability of all possible outcomes of a…

Q: According to San Jose Mercury News, children in China average 3 hours a day unsupervised. Most of…

A:

Q: Explain the formula for the variance of the sampling distribution of the mean?

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: An unfair coin is flipped 2 times. The probability of getting heads on a single flip is 70%. 1. What…

A:

Q: A fair coin is tossed 60 times. Find the probability that the head appears between 20 and 40 times…

A: X~Bin(n=60, p=0.5) P(20<X<40)= ?

Q: 78% of U.S. adults think that political correctness is a problem in America today. You randomly…

A: Given data 78% of U.S adults think that political correctness is a problem in America today you…

Q: 76% of U.S. adults think that political correctness is a problem in America today. You randomly…

A: Solution: Let X be the random variable that the number of U.S adults who think that political…

Q: How can we calculate the probability-weighted average of the squared deviations?

A:

Q: What are the range, variance, and standard deviation of 0, 5, 10, 15, 20, and 25?

A: The following information has been given: 0, 5, 10, 15, 20, 25

Q: . What is binomial distribution? What are the properties of binomial distribution? Derive the mean…

A:

Q: How will you know by using the mean and median to determine if a distribution is normally…

A:

Q: What is the binomial distribution?

A: The binomial probability distribution is a discrete probability distribution in which the outcomes…

Q: 5. The average salary of bank managers in a certain city is $91,900 pesos per hour with a standard…

A: Let X be the random variable from normal distribution with average or mean (μ) = $91900 and standard…

Q: 7. The Real Estate Group NY reports that the mean monthly rent for a one-bedroom apartment without a…

A: Given: μ=2631σ=500n=100

Q: Supposed the price of paid apps for a certain category is normally distributed with the mean of $3.5…

A: Given that the  price of paid apps for a certain category is normally distributed with, Mean = 3.5…

Q: In the study about the family income and their expenditures, families can save an average amount of…

A:

Q: Given a normal population with mean = 39 and variance = 16, what is the probability of obtaining an…

A:

Q: César Chávez Day is observed in the United States on March 31 each year. It celebrates the birthday…

A:

Q: Average cost per flight is $350 with standard deviation of $64. If you randomly select 75 flights,…

A:

Q: Why is it that the normal distribution is the most useful probability distribution?

A: Solution-: We want to get the reason why is it that the normal distribution is the most useful…

Q: Erla rolls six sided dice 15 times. What is the standard deviation of the number of sixes that…

A: Let p be the probability of six  p=1/6, n=15 Let X be the number of sixes in rolling of dice  Then…

Q: 38. Astudy showed that a group of professional players can score 26 points on average in a single…

A: Solution

Q: what is the standard deviation for 12,10,15,12,20

A: X (X-xbar)^2 12 3.24 10 14.44 15 1.44 12 3.24 20 38.44

Q: What is probability and how is it related to the normal distribution?

A: Probability is a branch of mathematics that deals with the study of random events and their…

Q: What is a skewed distribution?

A:

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.