A school knows that 38% of its incoming students own a smart phone and a tablet. What percent of students who own a smart phone also own a tablet if 84% of students own a smart phone?

Q: A survey of 62 men found that 12 have a social media account. Another survey of 57 women found that…

A: Men are taken as group 1. Women are taken as group 2.   Given: n1=62x1=12n2=57x2=40α=0.07

Q: If 42% of students have a dog , 23% of students have a cat and 3% have a cat and a dog. What percent…

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Q: A middle school took all of its 6th-grade students on a field trip to see a ballet at a theater that…

A: Given that there are total 3840 seats. The students left 2496 seats vacant. This means the students…

Q: he number of stores that must be sampled is

A: Given : Margin of error=E=0.05 Significance level=α=0.10 Our aim is to find the number of stores…

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: An IQ score for which 15% of the population has a higher score and 85% have a lower score…

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Q: How many people at the clinic have blood type AB? Which blood type does the least number of people…

A: A survey is a method of collecting data from the respondents to collect information for the…

Q: A group of preschoolers has 8 boys and 24 girls. What is the percentage of girls to all children?

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Q: If 55% of the books have been signed out, what percent of the books have not been signed out?

A: Given that: According to the question, 55 % of the books have been signed out. Signed  out=55…

Q: . In Exton School, 60% of the boys play football and 36% of the boys play ice hockey. Given that40%…

A: Let us define the events as, A: Boys who play football.B: Boys who play ice hockey. From the given…

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 5000 fewer panels than Plant B…

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Q: A September, 2014, survey indicated that 53% of U.S. adults aged 18–29 used the social media…

A: Let total number of adults of U.S., aged 18-29, be x.   Given: Adult used instagram=53% of x=2Adult…

Q: On the Planet Zog, 50% of the population like watching sport, 60%of the population like listening to…

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Q: Of the trains that recently arrived at Hampton Station, 4 were on time and 2 were late. Considering…

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Q: In a village actually invaded by anthrax, 65% of the gouts were attacked and 90% have been…

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Q: A recent study of young executives showed that 30 percent run, 20 percent bike and 12 percent do…

A: Note: Hi there! Thank you for posting the questions. As there are several independent questions,…

Q: You survey 100 people and find that 75 of them would prefer to work at home to some extent. When…

A: Given: You survey 100 people and find that 75 of them would prefer to work at home to some extent.…

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

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Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050 females, 746…

A: There are two dependent variables which are males and females. The independent variable is using of…

Q: n 2015, the median family income in the United States was $66,650. (Source: U.S. Census Bureau) If…

A: It is given that the median family income in the United States is $66,650.

Q: In 2015, the median family income in the United States was $66,650. (Source: U.S. Census Bureau) If…

A: Given: Median = $66,650, 90th percentile = $178,500.

Q: In a class of 10 students, James got 3rd position from the lowest. What is his percentile rank?

A: Given data: In a class of 10 students, James got 3rd position from the lowest. To find: What is his…

Q: Brad and Lena are recording their classmates' eye color for a statistics assignment. In Brad's…

A: Brad's class: green-eyed students = 3 total students = 25 ratio(A) = 325     Lena's class:…

Q: In 2015, the median family income in the United States was $66,650. (Source: U.S. Census Bureau) If…

A: Given information Median family income = $66650 90th percentile for 2015 four-person family income…

Q: There are 75 students enrolled in American History.  If 60 of the students enrolled are also…

A: Given that: There are 75 students enrolled in American History.  If 60 of the students enrolled are…

Q: A cafeteria manager surveyed a random sample of students at a school to determine which of 2 meal…

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Q: There are 12 boys in a class of 30 students. What percentage of the class is boys?

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

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Q: of the population have high school scores less than 77?

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Q: A hospital discharged 2,895 patients in January. If 3% developed a hospital-based infection, how…

A: Given, No of patients discharged in January=2895 3% developed a hospital-based infection No of…

Q: Mr. White collected data from his eighth grade class on whether they prefer the zoo or the museum.…

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Q: a skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p,…

A: It is given that the skeptical paranormal researcher claims that the proportion of Americans that…

Q: What percent of students who took the test have a score greater than 1300? If 5000 students took the…

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Q: In a survey 300 adults were interviewed, 123 said they had yearly medical checkup. Find the 95% for…

A: Sample size is n = 300 Number of adults who had yearly medical checkup, X = 123 The critical value…

Q: A movie complex is showing the same movie in three theaters. In theater A, 112 of the 160 seats are…

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Q: Jason reads a report that says 80% of U.S. high school students have a computer at home. He believes…

A: Given- p=claimed proportion =80%=0.8   and   n=sample size=60 To check- The conditions are satisfied…

Q: A recent survey reports that 22% of students take the bus to campus. If 660 students commute to…

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Q: During the course of a year, the number of i-Pod shuffles being manufactured went from 75,000 to…

A: To find: The percent of decrease in the number of I-Pod shuffles. Given information: During the…

Q: According to the U.S. Department of Labor, the median annual salary in 2003 for a physical therapist…

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Q: In a classroom, 12 students are wearing glasses, while six or not. What percent of the students are…

A: Given data: Number of student with glasses is p=12. Number of student without glasses is q=6.

Q: In a series of houses actually invaded by smallpox, 70% of the inhabitants are attacked and 85% have…

A: Suppose A & B be two events. Then we know, (A∪B)=(A)+(B)-(A∩B). Consider from the problem that,…

Q: Which player had the higher average points when compared to the other players on his team? O Fredo

A: Given information: The average points and standard deviations for the players Freda and Kari…

Q: What percentage of the widow students are  female

A: Total widowed students=2+3=5Total female students who are widowed=3

Q: Suppose that the result of a public opinion poll shows that just 10% of people would be willing to…

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Q: Which orchard has the highest rate of apples per tree?

A: Here it is given that the three apple orchards and each orchard has a different number of trees and…

Q: The national profession exam for registered nurses, the NCLEX, has pass a rate of 85% for the first…

A: According to the given information in this question It follows binomial distribution with parameters…

Q: In a company, 22% of the workforce are in sales, 56% of the workforce are male and 65% of the…

A: Probability is defined as a number between 0 and 1 representing the likelihood of an event…

Q: Three-fourth of the students in the class have an average IQ of 120 and the rest have an average IQ…

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Q: A chess club with 40 members is electing a new president. Deshaun received 36 votes. What percentage…

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