A test for heart disease is given to 100,000 patients. The results of the test are shown in the table below:   Tests Positive Tests Negative Total Has Heart Disease 29400 600 30000 Does Not Have Heart Disease 5600 64400 70000 Total 35000 65000 10000 What is the false positive rate? Give your answer as a percentage, not a decimal.  You do not need to include the percentage sign

Q: if a test is weighted at 25% and I make a 55 on the test with my current grade being a 82, would is…

A:

Q: What is the mean monthly rainfall in mm? O 1422.79 O 1245.30 O 1756.44 612.78 1245.30

A: The formula to find monthly rainfall is mean daily rain*days per month.

Q: A statistics professor made the following histogram for the scores on her class’s first exam.   If…

A: From the Histogram, the scores and the corresponding frequencies are, Given that the passing score…

Q: Find the relative frequencies in the below table (express as a fraction that is not simplified). For…

A: The formula for the relative frequency is

Q: Locate these decimals on the number line... 14 % 14 % 14.8, 14.25 14.502 14 75/100 14 15

A: We have to show the following numbers on the number line .

Q: The chart below shows the grade distribution on a quiz in one of my classes. If there are 34…

A: Solution: The objective is to find the number of students who scored A grade

Q: 50 part-time students were asked how many courses they were taking this term. The (incomplete)…

A: Given,Total no.of students=50

Q: Only 5 of 49 students missed the first day of class.  What percent of the students missed the first…

A: The variable is students who missed the first day of class. The sample size is 49. The number of…

Q: Oxnard College reports your GPA on a 4.0 scale. The "4" in the 4.0 GPA scale is equivalent to an A,…

A: Given info: The "4" in GPA scale is equivalent to an A, "3" is equivalent to a B, "2" is equivalent…

Q: 50 part-time students were asked how many courses they were taking this term. The (incomplete)…

A: From the given information, # of courses Frequency Relative Frequency=frequency/Total frequency…

Q: 84 %. $25.50? of udiat auauf is b. 2000"% of cokat amaut 4300?

A: Percentage : It is hundredth part of a quantity a% of b is represented as a100x b Here a is…

Q: You’ve been wondering about the latest rise in taxi services, such as Uber and Lyft.  You wondered…

A: The expected values are, Taxi service Observed proportion Expected Uber 28 12 67×12=33.5 Lyft…

Q: Calculate x¯ (x-bar) for the data shown, to two decimal places x 13.6 6.5 8.6 8 21.5

A: 13.6 6.5 8.6 8 21.5 Sample size n =5

Q: Find the grade-point average. Assume A = 4, B = 3, C = 2, D=1, and F = 0. The grade-point average…

A:

Q: The mean for the cost is $ (Round to the nearest cent as needed.)

A: The mean formula for the frequency distribution is, x¯=1n∑fixii In the formula, n is the total…

Q: What percentage of variation in GPAs can be explained by students' SAT scores? Round your final…

A: Coefficient of determination is the square of the correlation coefficient  (r2) and it explains that…

Q: 100% = 100/100 =

A: Given: 100% = 100/100

Q: Calculate the standard score for each given value. Round your answer to the nearest hundredth

A: According to the given information, we have Mean = 1123 Standard deviation = 241

Q: New Orleans, La. has an average January temperature of 52.6 degrees Fahrenheit. What is this average…

A:

Q: Complete the table: # of movies watched Frequency 0 3 1 8 2 9 3 4 4 1 Relative Cumulative Enter the…

A: We know that the relative frequency is given by; Relative Frequency=FrequencyTotal Frequency

Q: Your friend’s office is having a weight loss contest, the winner will get $100. The participants'…

A:

Q: A 20-minute consumer survey mailed to 500 adults aged 25-34 included a $5 Starbucks gift…

A: Given: Total adults = 500 A 20-minute consumer survey mailed to 500 adults aged 25-34 included a $5…

Q: A box contains 55 red cookies, 30 blue cookies, and  100 green cookies.  Find the relative frequency…

A: Given: Number of red cookies=55 Number of blue cookies=30 Number of green cookies=100   Total number…

Q: Compute the GPA for the following student.   Letter Grade Value              Frequency A 4 37 B 3 32…

A: Solved below

Q: A restaurant did a survey among 100 customers to find their food preferences. The customers were…

A: Here, A restaurant did a survey among 100 customers to find their food preferences. The customers…

Q: Web conferencing has grown over the last 20 years. The amount (in millions of dollars) spent on Web…

A: The given table and we need to find the average rate of changes."As per the rules, we are supposed…

Q: n a survey done in 2010, students in a statistics class were asked, "How do you prefer to use your…

A: The survey result of students is given.

Q: If the ACTUAL length and width INCREASE by 10%, what is the NEW AREA? A. 202.12 sq feet B. 30.1 sq…

A: Given Length=5 cmWidth = 3 cmNow, both length and width is increased by 10%, soNew length=5.5…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.