Suppose in a single month a certain baseball team won 9 games and lost 15. What percent of the games did they win? (Hint: Use total games played as the base.)

Q: 4. If the sale of ice cream and pizza are independent, then as ice cream sales decrease by 60…

A: Given that  The sale of ice cream and Pizza are independent . The ice cream sales decrease by 60%…

Q: The salesforce at a certain company successfully closed 94 out of 200 sales calls. What was their…

A:

Q: 60% of students entering four-year colleges receive a degree within six years. Is this percent…

A: In this case, the claim to be tested is whether the percentage of intramural sports playing students…

Q: 5. What percent of the sophomores watch TV for at least 15 minutes per night?

A: Following statistics is given for TV time   Minimum = 0 minutes Q1 = 15 minutes Q2 = 60 minutes Q3 =…

Q: (a) What percent of the scores are less than 19? (b) Out of 1500 randomly selected scores, about how…

A: mu = 19.9 s = 5.1

Q: 5. In a shipment of 750 computers, 75 were found to be defective. What percent of the shipment of…

A:

Q: At a local Dunkin’ Donuts, a survey showed that out of 1,090 customers eating lunch, 327 ordered…

A:

Q: 13. If 27 out of 30 people passed a driving test, what percent failed?

A: Given Total people = 30 Passed people= 27 So ,failed people= 30-27 = 3

Q: If the distribution is approximately mound-shaped, what is the proportion less than 80.12 ? 15

A: Find the value of z using mean and standard deviation.

Q: invested in bonds. For a = .10, does the test show enough evidence to declare that the proportion of…

A: Given: Sample size, n = 215 x = 91 Population proportion, p = 0.57  significance level

Q: (b) What percent of homes for sale have porches or pools? = (c) What percent have neither a porch…

A: X: Real Estate Ads Y: Porch P(X) = 0.48 P(Y) = 0.35 P(X and Y) = 0.18

Q: se a study revealed 5*

A: Given, a study revealed 57% of all subjects possessed trait A, 28% possessed trait B, and…

Q: Consider a survey involving the cookie preferences of a sample of 1,214 adults. If 9% answered…

A: Consider the given information. A fraction can be converted into percentage by multiplying 100 and…

Q: n Exton School, 60% of the boys play football and 36% of the boys play ice hockey. Given that 40% of…

A:

Q: A local anime fan club surveyed its members regarding their viewing habits last weekend, and the…

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Q: What percentage of pets are Rabbits?

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Q: The Social Security Administration announced the following rates to explain what percent of your…

A:

Q: The 12th percentile is (Round to two decimal plac

A: X~ N(μ=46 , σ= 7) then Z=X-μσ=X-467 ~N(0,1) Let P12 be the 12th percentile and is defined as P(X ≤…

Q: If in a village actually involved by anthrax, 70 per cent of the goats are attacked and pei cent…

A:

Q: The scores on a statewide chemistry exam were normally distributed with ?=73.08 and ?=6. Gabriela…

A: Given data isMean(μ)=73.08standard deviation(σ)=6

Q: Find the probability of selecting either a non-smoker or a woman when you select a person at random…

A:

Q: In a random survey of 1500 adults in California and 1000 adults in Oregon, you found that 228…

A: Given that

Q: A survey asks: Which online services have you used in the last month: - Twitter Facebook - Have used…

A:

Q: Suppose in a single month a certain baseball team won 3 games and lost 21. What percent of the games…

A: Won=3 gamesLost=21 games∴total games =3+21                           =24winning persentage=324*100%…

Q: In research about the population of a county with 100,000 inhabitants, a sample of 3000 households…

A: According to the provided data, a total of 3000 households were contacted to participate in the…

Q: In a recent survey of 180 people who drink coffee or tea, it was found that 137 drink coffee and 74…

A:

Q: A footwear retailer sold 12 pairs of sneakers for $45 each, 11 pairs of leather shoes for $140 each,…

A:

Q: a) What is the minimum relative frequency of the number of heads for the first 10 tosses? 0 of b)…

A: b) Maximum relative frequency of the number of heads for the first 10 tosses is 1

Q: Based on the information, what is the cumulative relative frequency for the 50.2% - 59.7% change in…

A: It is given that Cumulative frequency for class 50.2-59.7 is = 45 Total frequency = 50

Q: "he Investment Research Institute reported in its Mutual Fund Fact Book that the number of mutual…

A: see hand written solution

Q: 7. What percentage suffered for fewer than 61 hours?

A: Given that.   X~N( μ , ?^2 )   μ=83     , ?=20   Z-score =( x - μ )/?

Q: Con side that the ten Percent of indlividuals getting tested for the Virus, have the Virus. Now…

A: Let A be the event denoteds the person having virus and B be the event denote the event the person…

Q: The Investment Research Institute reported in its Mutual Fund Fact Book that the number of mutual…

A: Given,         The no.of mutual funds increased         from 5665 in 1999 to 7903 in 2009.

Q: In a sample of 169 students, 16 said they have donated blood. What percent of the students have…

A: Given that, In a sample of 169 students, 16 said they have donated blood.

Q: a survey showing the popularity of the current governor gives an approval rating between 42% and…

A:

Q: A basketball player amkes 8 of 22 shots in game 1, 6 of 15 shots in game 2, and 10 of 23 shots in…

A: Given that, A basketball player Amkes 8 of 22 shots in game 1, 6 of 15 shots in game 2, and 10 of 23…

Q: Suppose that the results of a survey show that 53% of people consider summer as their favorite…

A: Given that Results of a survey show that 53% of people consider summer as their favorite season.…

Q: USE THE FOLLOWING INFORMATION TO ANSWER THE NEXT TWÓ QUESTIONS. At a particular university, 60 % of…

A:

Q: (a) What proportion of babies born full term are low-birth-weight babies? (b) What proportion of…

A: From the given information, let X be the full term baby birth weights. Here, X follows normally…

Q: Approximately what percent of students own somewhere between 30 and 50 CDs? O 50% O 4% O 20% O 25%

A: It is given that the statistical five number of summary of the number of CDs owned as reported by…

Q: a) What proportion of the sampled wafers had (P 2 8)? b) What proportion of the sampled wafers had…

A: 5. a) The frequency is, Number of Particles Cumulative frequency Frequency Number of Particles…

Q: In research about the population of a county with 100,000 inhabitants, a sample of 3000 households…

A: The number of households not willing to participate in the survey is 1200.

Q: Find the probability of selecting either a non-smoker or a woman when you select a person at random…

A:

Q: a) How many guests are represented on the box and whisker plot? b) What percent of days had less…

A: here form given boxplot, using 5 point summary  to answer the question  minimum = 15 Q1  = 30 Q2  =…

Q: A recent health survey 500 single young men yielded the following information: 385 were a member of…

A: Let, A= member of a sports club B= vegetarian S= total set of 500 people Let x people are members of…

Q: (d) What percentage of GMAT scores are between 447 and 747?

A: We have to find out given probabiity..

Q: At a local dunkin donuts a survery showed that out of 1060 customers eating lunch 318 ordered coffee…

A: Probability: The ratio of the number of favorable outcomes to certain event and total number of…

Q: Complete the table and determine what percent of the people have exactly zero sibling(s)?

A: Here it is given that , 210 people are asked how many siblings they have. So it means that , you're…

Q: Find the percentage of scores of the following

A: Given,μ=0s=1

Q: D. 60 percent of all children spend at least how many hours per day unsupervised? hours.

A: Given that  X ~ N ( μ =  3 , σ = 1.5 ) μ = 3  , σ= 1.5 Formula for Z-score Z = ( X - μ ) / σ