Recently, the top web browser had 51.28% of the market. In a random sample of 275 people, what is the probability that fewer than 121 did not use the top web browser? Round the final answer to at least 4 decimal places and intermediate z-value calculations to 2 decimal places

Q: A national survey reported that 31% of adults in a certain country have hypertension (high blood…

A:

Q: During one year, a particular mutual fund outperformed the S&P 500 index 41 out of 52 weeks. Find…

A: Given that: A particular mutual fund outperformed the S&P 500 index 41 out of 52 weeks.

Q: A password with 55 characters is randomly selected from the 2626 letters of the alphabet. What is…

A: Given information Password with 5 characters is required from 26 letters of alphabet

Q: The median score for the final exam in a COMM 215 class was 70 and 21.5% of the students received a…

A: Mean = Median (Normal distribution property) -------------------------- Z = x-μσ~N(0,1)

Q: Labor force participation among women rose in the United States between 1975 and 2000 and has been…

A: It is given that:

Q: A survey conducted for the Northwestern National Life Insurance Company revealed that 70% of…

A: It is given that n = 20 and p = 0.70.

Q: If 15% of adults in a certain country work from home, what is the probability that fewer than 54 out…

A: Given that  Sample size n =450 Population  proportion p =0.15

Q: Pew Research Indicates that 73% Of teenagers Ages 13-17 Owns smart phones. A random sample of 150…

A: Solution

Q: A mail order company has a 11% success rate. If it mails advertisements to 515 people, find the…

A: Given Information: n=515p=11%=0.11To find the probability of getting less than 53 sales.

Q: The average number of newspapers sold at a busy intersection during rush hour is 5 per minute. What…

A: Given that the average number of newspapers sold at a busy intersection during rush hour is 5 per…

Q: According to government data, 74% of employed women have never been married. Rounding to 4 decimal…

A:

Q: A Food Marketing Institute found that 56% of households spend more than $125 a week on groceries.…

A: Given: n = 88 μ = p = 0.56σ=p(1-p)n=0.56(1-0.56)88=0.0529p^=0.58

Q: The probability of buying a movie ticket with a popcorn coupon is 0.717. If you buy 21 movie…

A: Given datan= 21p= 0.717probability that exactly 14 of the tickets have popcorn coupon green is given…

Q: One environmental group did a study of recycling habits in a California community. It found that 73%…

A: Given,n=383p=0.73mean(μ)=npμ=383×0.73=279.59standard deviation(σ)=np(1-p)σ=383×0.73×(1-0.73)σ=8.6885

Q: The average number of cars arriving at a petrol station is 2 per minute. What is the probability…

A: Let X denotes the number of cars arrived in 4-minute interval Given : Arrival Rate (λ) = 2 cars per…

Q: A magazine reported that 6 percent of all drivers talk on their cell phone while driv If 300 drivers…

A: Given data, p=6% =0.06 n=300 P(0.04<X<0.07)=?

Q: The Gallup Poll reported that 43% of Americans are fans of professional baseball. If 4 people are…

A:

Q: The National Vaccine Information Center estimates that 90% of Americans have had chickenpox by the…

A:

Q: According to recent surveys, 60% of households have personal computers. If a random sample of 176…

A: Normal approximation to the binomial: From the given information, sample size, n = 176. The…

Q: The probability that fewer than 33 of 124 eligible voters voted is (Round to four decimal places as…

A:

Q: If the group contains 6 women, what is the probability that the two chosen will both be women

A: It is given that Total consumers = 20 Number of women = 6 Sample size = 2

Q: For next year, 45% of veterans will buy a single-family home. If we pick a random sample of 5…

A:

Q: During one year, a particular mutual fund outperformed the S&P 500 index 39 out of 52 weeks. Find…

A: Given problem Given that   First Method :

Q: For all of the California Community Colleges, the population of full-time faculty members have a…

A: According to the given information, we have Given that the ages of full-time faculty members is…

Q: A recent study has shown that 45% of recent college graduates are able to find full-time employment…

A: Given, p = 45% = 0.45 If we were to randomly select three (3) recent college graduates, what is the…

Q: A pharmaceutical company receives large shipments of ibuprofen tablets and uses this acceptance…

A:

Q: The amount of time for one employee to be served at the company coffee shop is a random variable…

A: Given : θ = 4 Px≤3 = 1 - e-34               = 1 - 0.4724              = 0.5276

Q: A recent study by Allstate Insurance Co. finds that 78% of teenagers have used cell phones while…

A:

Q: A national survey reported that 31% of adults in a certain country have hypertension (high blood…

A:

Q: A well mix cookie dough will produce cookies with a mean of 8 chocolate chips apiece. What is the…

A: poisson distribution is given by

Q: During one eight-week period, a particular mutual fund outperformed the S&P 500 index 21 out of 40…

A: During one eight-week period, a particular mutual fund outperformed the S&P 500 index 21 out of…

Q: Alfie Solomons owns a rum distillery. On average, he produces 100 liters of rum with a standard…

A:

Q: Find the probability that, when playing 100 games, the player will win more than $5 on average.…

A: The following information has been provided: μ=4, σ=0.583\mu = 4, \text{ } \sigma = 0.583

Q: A sample of 400 adults were surveyed on their health. 78 of those studied have high blood pressure,…

A: Solution: Given that : Total people = 400No of people that are unwilling to change diet = 94

Q: Suppose times for the 100m sprint for the average person are unimodal and symmetric with mean 14…

A: Consider X be a random variable which follows normal distribution indicates average time in seconds.…

Q: The average monthly grocery bill for an individual is normally distributed with a mean of $85 and a…

A:

Q: In a poll about work, 68% of respondents said that their jobs were sometimes or always stressful.…

A:

Q: I observe that the frequency of cones with long bristles in a population of foxtail pine (Pinus…

A: Introduction :-  We want to find probability that a randomly chosen foxtail pine tree in this…

Q: A botanist developed a new hybrid cotton plant that can withstand insects better than other cotton…

A: From the given information, n = 3,000 and x = 2,300.

Q: The number of calls received by a car towing service averages 19.2 per day (per 24 hour period).…

A: Given  λ= Average no. of calls received by a car towing service =19.2 per day =19.224per hour X= No.…

Q: It has been reported that last year 25% of drivers have fallen asleep at the wheel. If 192 drivers…

A: Given: p=0.25, n=192 and q=1-p=1-0.25=0.75 Here the random variable X follows binomial distribution…

Q: A company produces optical-fiber cable with a mean of 0.6 flaws per 100 feet. What is the…

A:

Q: A recent survey showed that 71 full-time employees out of a sample of 500 did not use all of their…

A: Total number of employees = 500 Number of employees who did not use all of their vacation days last…

Q: Just before a referendum on a school budget, a local newspaper polls 392 voters to predict whether…

A: The sample size is 392, and population proportion is 0.52. Checking conditions: The both conditions…

Q: A pharmaceutical company receives large shipments of ibuprofen tablets and uses this acceptance…

A: Solution: Let X be the number of tablets does not meet the required specifications. From the given…

Q: Alfie Solomons owns a rum distillery. On average, he produces 100 liters of rum with a standard…

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

Q: In a poll about work, 68% of respondents said that their jobs were sometimes or always stressful.…

A: Given: Probability of respondents says job were stressful, p=0.68 Sample size, n=12

Q: A survey of 190 students at a College showed that 108 students studied College Math, 70 studied…

A:

Q: he table summarizes results from 980 pedestrian deaths that were caused by automobile accidents.…

A: Given Information: Driver / Pedestrian Yes No Total Yes 60 69 129 No  238 613 851 Total 298…

Q: A survey indicated that 15% of residents of a country have a great deal of confidence in banks and…

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.