19. In a recent year, there were 2,515,458 deaths, and 787,650 of them were due to cardiovascular disease. The cause-of-death ratio is expressed as follows: (deaths due to speci fic désease total number of deaths |k, where k = 100 a. Find the cause-of-death ratio for cardiovascular disease. Round off to 1 decimal place. b. If three of the deaths are randomly selected, find the probability that none of them are due to cardiovascular disease. Round off to 3 decimal places.

Q: Then, the relative frequency of the class 22 – 34 is -

A: # Given frequency tabulated data  then to find relative frequency of class(22-34)??

Q: The researcher claims that the proportion of birth count in four quarters are equal. Th observed…

A: Null Hypothesis: H0: The proportion of birth count in four quarters are equal. Alternative…

Q: Approximate x to three significant figures.

A: Given, lnx=3.7 find approximte x  lnx=3.7x=e3.7 where e=2.71 x=2.713.7 x=40.447

Q: a. Assume that nothing is known about the percentage to be estimated. (Round up to the nearest…

A: a) If nothing is known about percentage to be estimated,  We will have a conservative estimate for…

Q: c. How could you proceed to find out how many of the eligible people would actually join the new…

A:

Q: A survey of 500 people were asked this same question and the results were recorded in a tree diagram…

A: As per our guidelines we are supposed to answer only 3 subpart of any questions so i am solving…

Q: In the frequency distribution X     f 10   1 9     2 8     4 7     3 6     2 What is the sum…

A: The given data shows the frequency distribution.

Q: Find the weighted average of a data set where 10 has a weight of 5, 30 has a weight of 2, and 50 has…

A: It is given that average of data set where 10 has a weight of 5,30 has a weight of 2 and 50 has a…

Q: lon below to answer questions 36 & 37. An investigator wants to study lung cancer among male Uranium…

A:

Q: How to calculate Samsung’s cost (C(Q)) of producing 1,2,...15

A: Q is given as follows. Q: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 The develop Samsung S35 it cost…

Q: The following histogram shows the distribution of serum cholesterol level (in milligrams per…

A: Given histogram is

Q: In one region it was found that 28% of people with incomes less than $50,000 use the Internet; 48%…

A: Given: Income Internet use Do not use internet <50000 0.28 0.72 50000-74999 0.48 0.52…

Q: 250 people are asked how many siblings they have? # of Siblings Frequency Relative Frequency…

A:

Q: 1) what proportion of students scored above student 33 on homework 3? 2) what proportion of students…

A: Given:   Student ID HW 1 HW 2 HW 3 1 98 93 99 2 81 80 64 3 66 91 75.5 4 84 94 80 5 65…

Q: The frequency distribution for the commission earned (in dollars) by salespeople employed at several…

A:

Q: Suppose we observe 30 cases of colon cancer over 35,000 person-years among women ages 50–54. Provide…

A: Obtain the point estimate for the incidence rate of colon cancer among the women of age 50-54 years:…

Q: If a coin is flipped 150 times and the number of Hs is 25. Compute the proportion of Hs. Round to…

A: We have given that,  Favorable cases (X) = 25 and sample size (n) = 150 Then,  We will find the…

Q: d. The managers of a local luxury hotel would like to set the hotel's average daily rate at the 75th…

A: Let P75 denote the 75th percentile i.e below which 75% of hotels rate are set.

Q: Suppose in a single month a certain baseball team won 3 games and lost 21 what percentage of the…

A:

Q: What percentage of scores fall between the following z scores: -1 to +1; -1 to +2; and -1 to +3?

A: a) -1 to +1 = P(-1<z<1) = P(Z<1)-P(Z<-1)  =0.8413-0.1587 =0.6826 =68.26%

Q: The following is two years monthly sales data of 5 different outlets of a well-known textile brand.…

A: I have used Excel and the command is as follows: Data >> Data analysis >> Anova : single…

Q: 2- The range for the following data: 70,40,6,50,13,8,90,30 is equal to

A: The given data: 70, 40, 6, 50, 13, 8, 90, 30 Formula used: The range of the data is  Range=Xm-Xo…

Q: The file contains the amount that a sample of nine customers spent for lunch ($) at a fast-food…

A: Observation: XX X^2X2 1 4.20 17.64 2 5.03 25.3009 3 5.86 34.3396 4 6.45 41.6025 5 7.38…

Q: What percentage of all possible observations of the variable lie between 1/4 and 5/8

A: Let us first assume that the total proportion is from 0 to 1. The proportion lying between 1/4 and…

Q: When we add the data value 21 to the original Set A, the data values in this new data set can be…

A: Consider that the random variable x of size n, that is, x1, x2, …, xn. Thus, the mean is defined as…

Q: For a certain company, the monthly percentages of all shipments received on time over the past 12…

A: b) Three month moving average:

Q: If your study consists of four groups, each with 15 subjects, and SSpet = 42 and SSw = 35, what does…

A: Number of groups, k = 4 Number of observations, N = 60 SSbet = 42 and SSw = 35

Q: The following table shows the systolic blood pressure of 5 women and 5 men.   Women 110 120 95…

A: We state the hypothesis for testing difference in means.  H0: There is no significant difference…

Q: Researchers at a local public health office are interested in the difference in prevalence of sickle…

A:

Q: d. Give a 95% interval estimate of the number of fatal accidents per 1000 licenses in a city where…

A: Solution:  Given information: n= 42  Sample size  MSE= 0.3473  Mean square  error  The degree of…

Q: n a student survey, sixty part-time students were asked how many courses they were taking this term.…

A: Relative frequency = frequency / total frequency

Q: 1. If we add the same constant c to each item in a set of data, what do you think will happen to the…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: purchase appears to be relatively constant over time. In 2015, among a sample of 389 on-line buyers,…

A: From the available information, Let x1 denote the number of online buyers purchased merchandise in…

Q: Write the null and alternate Hypothesis for the first two outputs.            [1.5] Develop the…

A: The following table is obtained from the first two outputs   Brand A = Group 1 Brand B = Group 2…

Q: Suppose that in a survey of 1,000 U.S. residents, 721 residents believed that the amount of violent…

A: From the provided information, Number of residents = 1000 721 residents believed that the amount of…

Q: The national distribution of fatal work injuries in a country is shown in the table to the right…

A: The given data is about chi-square test for goodness-of-fit. The total number of fatal work injuries…

Q: 3. Below are the numbers of flights on time and delayed for Alaska Airlines at five airports in one…

A: Given data   On time Delayed Total Los angeles 497 62 559 Phoenix 221 12…

Q: Suppose that out of 10,351 convicts who escaped from U.S. prisons, only 7767 were recaptured. Let p…

A:

Q: 15.If you put all the names of the addicts in a hat, mix the names thoroughly, and pull one name out…

A: The percentage distribution of duration of abstinence is provided as follows:

Q: The cmulative frequency of the last class interval will be equal to a) 100 b) none of these c) total…

A: 1) The cumulative frequency of the last class interval will be equal to c) total frequency…

Q: A study is to be conducted in a hospital to determine the attitudes of nurses toward various…

A:

Q: 2. The number of class intervals in a frequency distribution (or bar chart) will be approximately…

A: Range = Maximum -Minimum

Q: As shown in the table, the average number of siblings (sibs) for 1018 middle class adults is 3.15.…

A: Introduction: It is required to determine if the middle class of the country come from smaller…

Q: µ = 9 has Σ X = 54. How many scores are in the populatio

A: Given that   A population with mean (μ) = 9 Summation of data values  Σ X = 54   We know that Mean =…

Q: Which of the following may be determined from the height of the bar in a relative frequency…

A: d. The number of observations that fall into that class.

Q: a. How many of the 125 people had resting pulse rates of more than 100? b. What percentage of people…

A: a. There are totally 125 people who had resting pulse rates. Count the number of dots that are above…

Q: The following are the raw score for the 90-item examination in Statistics of the 50 students in 10th…

A: Note:  Since,  we only answer up to 3 sub-parts, we'll answer the first 3. Please resubmit the…

Q: If the following seven scores are ranked from smallest to largest, then what rank should be assigned…

A: Rank in Statistics: When data is ordered, numeric or ordinal values are replaced by their rank,…

Q: (d) How high a score must you have in order to be in the top quarter of the population in social…

A: (d) The high score for order to be in the top quarter of the population in social insight is,…

Q: In 1945, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you…

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.