The probability that an 18- to 24-year-old spends more than 135 minutes watching video on his or her smartphone per month is. (Round to four decimal places as needed.)

Q: Calculate the mean percent of African American persons living below the poverty level. This will be…

A: Solution: The mean percent of African American persons living below the poverty level is required.…

Q: A very good professional baseball player gets a hit about 35% of the time over an entire season.…

A: Solution:- The commentator is wrong because the law of averages does not apply in this situation.…

Q: Approximately 1 percent of women ages 40-50 have breast cancer. A woman has a 84 percent chance of a…

A:

Q: A baseball player has a batting average of 0.313. what is the players expected number of hits in her…

A: Solution: Given data p = 0.313 n =19 To find : Expected number of hits in her next 19 times at bat?…

Q: The probability that a student in driving lesson will pass the written test for a non professional…

A:

Q: Find the probability of selecting someone who uses drugs. Round to 3 decimal places

A: Positive test resultsNegative test resultsSubjects uses drugs455Subjects does not uses drugs25480

Q: Given: 4 = 43,0 3. What is the raw score when:

A: Let X be the raw score from normal distribution with mean (μ) = 45 and standard deviation      (σ) =…

Q: OS Life Expectancy at Birth of a Canadian Male Birth year 1920 1930 1940 1950 1960 1970 1980 1990…

A: a) Let x represents birth year since 1920 and y represents life expectancy at birth. Let  x=0 for…

Q: Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho:…

A: Solution: State the hypotheses Null hypothesis: Alternative hypothesis:

Q: What is the probability a woman has breast cancer given that she just had a positive test?

A: Given,  1% women have breast cancer 85% chance of having breast cancer and test positive(true…

Q: How many years is a randomly selected 20​-year-oldexpected to live beyond his or her 20th ​birthday?…

A: The table gives the expected remaining lifetime of a randomly selected 20 year old individual.

Q: Obtain the correlation. Provide your answer to four decimal place.

A: The Pew Research Centre conducted an international survey to explore relationship between the level…

Q: Consider the discrete data in the table below. a) Construct a frequency distribution a) Construct a…

A: Frequency Distribution : A frequency distribution is representation of data in a graphical (or)…

Q: Did anyone have an iq of 115?

A: Histogram is given :  First we will construct frequency table from the histogram :  Steps :  Write…

Q: Investigators evaluated the effect of education (E1=1 if college or more, E2=1 if Masters degree or…

A: The logistic regression model is given by:To find:The odds of having a job for someone with a…

Q: Approximately 1 percent of women ages 40-50 have breast cancer. A woman has a 95 percent chance of a…

A:

Q: Approximate x to three significant figures .

A: x=log 8.4 , b. log x=-2.4260 c. ln x=1.8

Q: A researcher records the gender of each child born in the county hospital during the month of June.…

A:

Q: Speed Group (ml/h)Number of Vehlcles Observed (N) 15-20 20-25 25-30 9. 30-35 18 35-40 35 40-45 42…

A: Given data :

Q: Approximately 1 percent of women ages 40-50 have breast cancer. A woman has a 80 percent chance of a…

A: It is given that probability of the woman has breast cancer is 0.01.

Q: Statistics jobwant workstatus age tv gpa Valid 134 133 133 132 134 Missing 1 1 Mean 23.29 3.88 2.50…

A: Given info: From the given SPSS output, the number of hours participants watch television in a…

Q: The length of time a person shops for groceries can be modeled by an exponential distribution with…

A: Given, Let X be the length of time. X is exponentially distributed Average= 27 mins

Q: poll showed that 55.3% of Americans say they believe that statistics teachers know the true meaning…

A:

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

A:

Q: The monthly rents for five apartments advertised in a newspaper were $700, $700, $770, $1750, and…

A: Mean for a given set of data is obtained by averaging the values over given set of data. Median is…

Q: The probability that ticket A will rise in price is 0.54 while the probability that the ticket B…

A: Let A and B are two events then the addition rule of probability is defined as The complement of an…

Q: ing above one of the data points in th

A: mean  = 9 standard deviation = 2.5 to find P(X>11)

Q: Find the mean of the data summarized in the given frequency distribution. Compare the computed mean…

A:

Q: The plasma cholesterol level (mg/dL) for patients who have not been diagnosed with heart disease and…

A: We have to find out given probability..

Q: Psychology students at a university completed the Dental Anxiety Scale questionnaire. Scores on the…

A: Given that, mean = μ=12, and standard deviation =σ=3.5

Q: U 50 ° D G. F E 190 °

A: The figure of the circle is given by To evaluate : The value of m∠EGF

Q: Approximate x to three significant figures.

A: Consider the given value. logx=-2.2118 Now, find the value of x.…

Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

A:

Q: Oliver Queen is able to hit the bull's-eye (center of the target) 85% of the time. If he shoots 25…

A: Given n=25 p=0.85 q=1 - p=1-0.85=0.15