Twenty-six percent of people in the United States with internet access go online to get the news. A random sample of five Americans with internet access is selected and asked if they get the news online. Let the random variable X- the number of people who go online to get the news. a. Construct a probability distribution table. b. Calculate the mean. c Calculate the variance to the nearest thousandth. d. Calculate the standard deviation to the nearest thousandth.

Q: In a study of births in 2007, it was found that 51% were male and 49% were female. If 100 people are…

A: Given that there are 51% are male and 49% are female & if 100 people selected randomly we have…

Q: Your company makes lamps. 96% pass final inspection (and 4% fail and need to be fixed). a) If we…

A: Given,n=20p=0.96Let X=no.of lamps pass final inspection.X~Binomial(n=20 , p=0.96)P(X=x)=cxn…

Q: The following table shows the probability of a cellular phone company. What is the standard…

A: Solution

Q: A.What is the mean and standard deviation of the distribution? B.What is the probability that…

A: According to the answering guidelines, we can answer only three subparts of a question and the rest…

Q: The mean admission charge for a movie is RM5.80. The distribution of movie admission charges is…

A: Given that  Mean = 5.80 Std = 0.8 a) p(x < 3.50 ) = p(x - mu/s < 3.50-5.8/0.8)…

Q: Determine the mean, variance and standard deviation of the probability distribution following Number…

A:

Q: d) What is the probability that the number of drivers will be 10 or more? e) Find the mean and the…

A:

Q: The following table shows the probability of a cellular phone company. What is the standard…

A:

Q: Suppose 20% of all emergency room patients have broken bones. Of the next fifteen patients to…

A:

Q: For a standard normal distribution, determine the following probabilities. a) P(D1.43) b) P(D-0.40)…

A: a)P(z>1.43)=?

Q: In 2019 about 45% of people watch over 3 hours of tv a week. Suppose 8 people were selected at…

A: It is given that n = 8 and p =0.45.

Q: 2. A study by Quadrant Information Services commissioned by Insure.com calculated auto insurance…

A: 2) Let X denote the annual auto insurance rates in the united states and it follows normal…

Q: The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 405…

A: As per the guidelines we are allowed to solve maximum of 3 subparts If you need help with other…

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: The operation manager at a tire manufacturing company believes that the mean mileage of a tire is…

A:

Q: The battery life of a fully charged cell phone is normally distributed, with a mean of 14 hours and…

A:

Q: Find the variance of the probability distribution for the histogram shown.

A: From the given histogram we can create the probability distribution table. Xi probability, p(x)…

Q: 5. The average number of acres burned by forest and range fires in a large New Mexico county is…

A: 5) Given Information: Mean μ=4300 Standard deviation σ=750

Q: In Bay field, Ontario 65% of residents read the bay-field breeze, a local online blog. Dennis wants…

A:

Q: A survey sponsored by the Vision Council shows that 79% of adults need correction for their…

A: The type of distribution is used in this problem is binomial distribution Reason: There are two…

Q: 2. The probability that a customer will buy 1, 2, 3, 4, or 5 items in a grocery store are 3 1 1 2…

A: From the given information, X P(X) X.P(X) X2 X2.P(X) 1 310 310 1 310 2 110 210 4 410 3 110…

Q: Find the mean, variance and standard deviation for the probability distribution given below:

A: Mean is the average value of the given observation. It is based on the all observation Standard…

Q: 1. Study reports that the average person uses 120 liters of water daily. If the standard deviation…

A:

Q: Compute the mean and the Standard deviation of the probability distribution table of : X 0 1 2 3 Y…

A: The objective is to compute the mean and the Standard deviation of the given probability…

Q: According to a government study, 15% of all children live in a household that has an income below…

A: The binomial distribution gives the probability of number of successes out of n trials in a series…

Q: A bank vice president feels that each savings account customer has, on average, three credit cards.…

A: a) Mean =E(X) =0(0.2)+1(0.3)+2(0.01)+3(0.09)+4(0.4) =2.19

Q: An immigration agent at Pearson Airport in Toronto could on the average process 120 entrants during…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: recent analysis of the number of rainy days per month found the following outcomes and…

A: Given that  Probability distribution table.  X 3 4  5 P(x) 0.40 0.20 0.40   We know  that…

Q: Derive the variance of the Student's t distribution.

A:

Q: A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet…

A: Given,mean(μ)=8.4standard deviation(σ)=1.8sample size(n)=40

Q: The probabilities are: P (0) = 6 P (1) = 6 P (6) = ! 6

A: Given data, X P(X=x) 0 4/6 1 1/6 6 1/6

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: Compute the mean, standard deviation, and variance for the probability distribution below. Round the…

A: 1 0.2 0.2 1 0.2 4 0.3 1.2 16 4.8 5 0.1 0.5 25 2.5 9 0.4 3.6 81 32.4       The mean of…

Q: A report announced that the median sales price of new houses sold one year was $231,000​,and the…

A:

Q: Need help with this one please.

A: Given that ; Mean = 7.2 inches S. D. = 1.3 inches P[ x<   1.3]     =  ?????  By using standard…

Q: I'm having trouble understanding what to do after I apply the formula to this problem. Any help…

A: Given info:It is given that µ=12,494; σ=1,290.Consider the random variable, x denotes the number of…

Q: The probabilities that a batch of 4 computers will contain 0, 1, 2, 3, and 4 defective computers are…

A:

Q: The lifetime of a computer circuit board is normally distributed with a mean of 2,500 hours and a…

A:

Q: A manager asked her employees how many times they had given blood in the last year. The results of…

A: Given:-   x 0 1 2 3 4 5 6 P(x) 0.30 0.25 0.20 0.12 0.07 0.04 0.02   we have to find E[X]…

Q: 4. The local pizza parlor prepares more than a hundred of pizzas a day, and the weights may vary.…

A:

Q: In a study of bumblebee bats, one of the world's smallest mammals, the weights are normally…

A:

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.6 inches,…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: Determine the mean, variance and standard deviation of the probability distribution following Number…

A: Given PMF of X. Now will using this pmf to find required information. x = [0,1,2,3,4] p(x) =…

Q: 4. According to a 2019 Federal Reserve report, 54% of U.S. young adults who went to college took on…

A:

Q: FIND THE STANDARD DEVIATION The number of items sold per day at a retail store, with its…

A: We have the probability distribution

Q: . Each member of a large genetics class grows 12 pea plants from an independent pea family. Each…

A: Total pea plants (n) = 12 Proportion of smooth pea plants = 3/4 Proportion of wrinkled pea plants =…

Q: a) No more than two of them dislike their mother in law? c) What is the expected number of women ()…

A:

Q: Suppose you sample one value from a uniform distribution with a=0 and b=50. a. What is the…

A: Let X be the random variable from Uniform (0,50) then probability distribution function is,…

Q: Determine the standard deviation of the random variable, B(600,0.4).

A: Here we need to find the standard deviation of the given binomial random variable.

Q: Still in the same context, aproximate the probability of having at most 26 jurors using the normal…

A: Here, n = 40 and p = 0.80.