The number of homes sold by a realtor during a month has the following probability distribution: Number Sold Probability 0 1 2 0.2 0.3 0.5 What is the standard deviation of the number of homes sold by the realtor during a month? 1 0.75 1.2 0.78

Q: Explain in detail what a normal probability plot is and how it is used to assess the normality of a…

A: Normal probability plot:The plot for the observed values of a variable versus the normal scores is…

Q: The monthly incomes of an organization follows a normal probability distribution with a mean of…

A: From the provided information, Mean (µ) = $5,000 Standard deviation (σ) = $100 Let X be a random…

Q: three-point shots made per game over his career with a standard deviation of 1.23. What is the…

A:

Q: The monthly returns on a stock follow a normal distribution with a mean return of 2% and a standard…

A: From the provided information,

Q: The average movie ticket cost $18.76 and the population standard deviation is $2.51. Assume movie…

A: Given Information: Mean μ=18.76 Standard deviation σ=2.51 To find the probability that a random…

Q: Height The average height of American females aged 18–24 is normally distributed with mean µ = 65.5…

A: Given μ=65.5 and σ=2.5   Use standardization asz=x-μσ   a) The probability of women whose height is…

Q: amounts of money requested on home loan applications at an office of savings follow the normal…

A: Given, μ=780000σ=20000

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: When parking a car in a downtown parking lot, drivers pay according to the number of hours or…

A: Standard deviations=σ=2.8532 k=3.25

Q: The probability a child is born with Down Syndrome when the birth mother is 40 years old is 0.01.…

A: The relative frequency of a particular class or observation can be obtained by dividing the…

Q: The mean annual cost to attend a attend a college is $44,324. Assume the distribution of annual…

A:

Q: What is the standard deviation of the he final exam grade distribution for all students in the…

A: Given grade (x) probability (p)  x*p x2  x2 *p 0 0.03 0 0 0 1 0.08 0.08 1 0.08 2 0.17 0.34…

Q: The population mean annual salary for an electrician is $46,700.A random sample of 42 electricians…

A:

Q: Annual snowfall in Anchorage, Alaska, is normally distributed with a mean height of 76 inches and a…

A: Given data,μ=76σ=4.7P(71.4<X<80.7)=?

Q: The final exam grade distribution for all students in the introductory statistics class at a local…

A: The formula to find the mean of the distribution is, EX=∑X·Px

Q: The average credit card debt for college students is $3262. The debt is normally distributed with a…

A:

Q: Find the probability for a normal

A: Requirement of the problem: P-1.20=Pz≤-1.20. Consider, Pz≤-1.20=0.1151, from the standard normal…

Q: An asset has an average return of 11.45 percent and a standard deviation of 23.04 percent. What is…

A: Given information- Mean = 11.45% Standard deviation = 23.04% We know that- A probability of 16%…

Q: B. Standard Deviation = 2.8532 The cost of parking is 3.25 dollars per hour. Calculate the mean and…

A: It is given that the probability distribution in tabulated form.

Q: Fill in the blank. Suppose the round-trip airfare between Philadelphia and Los Angeles a month…

A:

Q: A normal distribution curve has an egg shape when plotted. O True O False

A: Normal Distribution Curve The normal distribution is a symmetrical distribution function on both…

Q: The annual income for a sample of 450 part-time students is normally distributed with a mean income…

A: Given that.   X~N( μ , ?)   μ=31000 , ?=3000   Z-score =( x - μ )/?

Q: Find the standard deviation of the distribution.

A: Let X denote the number of defective parts in one day. The standard deviation of the distribution is…

Q: Automobile repair costs continue to rise with the average cost now at $367 per repair. Assume that…

A: Table and R command has utilized to calculate the probability.

Q: A sniper hits a target 80% of the time. He fires five shots at the target. Find  A. Probability…

A: Given problem is binomial distribution Let X: No. of hits n=No. of shots at the target=5 p=prob. of…

Q: Rhoda Harley rides her motorcycle when making deliveries for Fleet Delivery Services.  The number of…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Costs for standard veterinary services at a local animal hospital follow a Normal distribution with…

A: given data normal distributionμ = 89σ = 24P(53<x<125) =?

Q: A major application of analytics in marketing is determining customer retention. Suppose that the…

A: Given, The customer leaving for another carrier from one month to the next is 0.07We have to find…

Q: Calculate the variance and standard deviation of this probability distribution. Number of Bedrooms…

A: No of Bedrooms        Probability      x‐px       x2-px         3                       0.25…

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: Billiard tables have mean degree of balance 0 and standard deviation 1. What is the probability…

A: It is given that the mean and standard deviation are 0 and 1.

Q: The high temperature X (in degrees Fahrenheit) on January days in Columbus, Ohio, varies according…

A: Given: Mean μ=21 Standard Deviation σ=10 What is the probability that the high temperature is…

Q: Costs for standard veterinary services at a local animal hospital follow a Normal distribution with…

A: Let X be a random variable of a veterinary services.      Given that            X~ N ( 72,(22)^2)