Q4: The probability mass function of a discrete random variable X is given by the following table: X P(X) 1 2 3 4 5 6 1/36 3/36 5/36 7/36 9/36 11/36 Find 1- Cumulative distribution function. 2- Draw a graph of the probability mass function and cumulative distribution function. 3- Mean and variance. 4- Standard deviation.

Q: Suppose that a poll was taken in order to assess the number of gypsy moth nests in Pennsylvania. 200…

A: Given information: Problem: A poll was taken in order to assess the number of gypsy moth nests in…

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A: given data  normal distribution μ = 75000σ = ? warranty of 55000 miles 5% of tire will fail before…

Q: distance traveled per truck per year is normally​ distributed, with a mean of 60 thousand miles…

A: Let X be the random variable from normal distribution with mean (μ) = 60 and standard deviation (σ)…

Q: 1 1 Given that P(A or B)=P(A)=, and P(A and B) = find P(B). 8 OA. OB. O C. O D. 7778 32 318 1 5/8

A: GivenP(A or B)=12P(A)=14P(A and B)=18

Q: Set 2: 3, 5, 7, 9, 100 Set 1: 3, 5, 7, 9, 11 a. Find the median for each data set. b. Find the mean…

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Q: What percentage of people has an IQ score between 86 and 114​? ​(b) What percentage of people has an…

A: Let X denote the IQ scores. Given that X follows N(mean = 100, SD = 14).

Q: 46,795 runners finished the 2011 New York marathon. The 1981 marathon had 13,203 finishers. What was…

A: Given  Marathon in 2011 = 46795 Marathon in 1981 = 13203

Q: write a paragraph that discusses: Why is this graphic might be needed for that specific topic Why…

A: Given information: Topic: Job loss by quarter Variables:  1. Time 2. No. Of people

Q: e in Step 2. Kindly assis

A: Year Advert (X) Sales (Y) 2001 10 44 2002 9 40 2003 11 42 2004 12…

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A: Given: A national poll wants to determine what percent of all Americans favor a change in delivery…

Q: Construct a histogram and an ogive

A: Given that  Class  Frequency  15 - 18 2 19 - 22 5 23 - 26 4 27 - 30 5 31 - 34 4

Q: It appears that in step two, 9.264472524 was not squared. Should it have been -9 divided by the…

A: Yes you are right there is missing step the quantity 9.264472524 must be in square root

Q: Would you guess that the distribution is​ skewed, or roughly​ symmetric?

A: Given information n=57 Sample mean x̄ =81.8, Q1=72, Median Q2 = 82, Q3=92  sample size (n)=57

Q: Find the mean, variance, and standard deviation of the binomial distribution with the given values…

A: given data n = 122 p = 0.81 binomial distribution

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A: Given information: Data (x) 12 14 17 18 19 20 20 21 22 22 22 22 22 23…

Q: Find the probability of earning a medal. Group of answer choices

A: Given: Probability distribution table : To Find the probability of earning a medal.   Medal…

Q: Joan believes the best way to play roulette is to place a bet on a 6 block of numbers as the…

A: We have given that P(winning) = 6/38 P(loosing) = 32/38

Q: Fill in the blank. The tells us that for a population with any distribution, the distribution of the…

A: we have to faill blank   the ________ tells us that for a population with any distribution, the…

Q: For the given scenario, determine the type of error that was made, if any. (Hint: Begin by…

A: Type 1 error: When the null hypothesis is rejected even when it is true, this is known as a Type I…

Q: The total number of status offenses that adult offenders reported having committed as juveniles. Is…

A: It is needed to find the level of measurement of the number of status offenses that adult reported…

Q: The value of Ifm is: O A. 4280 O B. 3480 O C. 3820 O D. 3280

A: Given that Frequency distribution table in the question

Q: The ages (in years) of the 5 employees at a particular computer store are the following. 33, 28, 32,…

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Q: Suppose you are the president of the student government. You wish to conduct a survey to determine…

A: In systematic random sample, every one of the unit is population has equivalent possibility being…

Q: brand

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Q: Beanie babies are toy stuffed animals that have become valuable collector’s items. Beanie World…

A: a) A pie chart for the retired or current status of the 50 Beanie babies is constructed using…

Q: Suppose X ~ N(2, 7). What is the z-score of x = 2?

A: Formula for z-score is as follows ,    z = x-μσ Where , μ is population mean  σ is population…

Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 100…

A: Suppose a random variable X, defines the time required to complete a 1040Rtax form.

Q: A biologist measures the length (in inches) of 11 baby snakes. Their lengths are given below. Length…

A: For the given data Draw the histogram for this data using 5 classes

Q: The following is a list of 13 measurements. -72, 43, 14, 26, -19, 50, -23, 6, 49, 36, 18, 25, 28…

A: From the provided information, -72, 43, 14, 26, -19, 50, -23, 6, 49, 36, 18, 25, 28 Number of…

Q: Which term of the arithmetic sequence {24, 29, 34, 39, ... } is 144? It is the th term.

A: Given: The given arithmetic sequence = 24, 29, 34, 39, ..... Formula used: an = a + (n-1)d Where,…

Q: Height has an approximately bell-shaped distribution. For a sample of heights of college students…

A: Given that: Sample mean and standard deviation for males: x¯=72s=4 Sample mean and standard…

Q: A simple random sample of 30 residents from Seattle is taken to estimate the median income of all…

A: Given that A simple random sample of 30 residents from Seattle is taken to estimate the median…

Q: A personality test has a subsection designed to assess the "honesty" of the test-taker. Suppose that…

A: The given margin of error is 5, population standard deviation is 20 and confidence level is 90%.

Q: The "high school female athletes" data file has data for 57 high school female athletes on the…

A: Given that The "high school female athletes" data file has data for 57 high school female athletes…

Q: Scores: 3 2 1 0 7 4 8 6 6 4 (A) What is the typical, most common creativity score? (B) What is the…

A: Given data:  3 2 1 0 7 4 8 6 6 4

Q: An airliner carries 100 passengers and has doors with a height of 76 in. Heights of men are normally…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Directions: Pick a scenario describe a binomial experiment. Recall the random variable X is for the…

A: Given:  Scenario 1 : surgeon perform routinly 4 surgeries the chance (probability)that he performe…

Q: A news program reports that 41% of the population are in favor of a certain issue, 47% are against…

A: Given 41% in favour 47% are against Rest are undecided Undecided = 100 - (47+41)=12% One person…

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Q: Question 1 Let X have the probability density function for 0<x< 1 otherwise Let Y-In X. Find P(Y<…

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Q: Considering salary of employee's in a company, the mean salary of managers is $102,000 per year.  Is…

A: Considering salary of employee's in a company, the mean salary of managers is $102,000 per year.…

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A: Inflation is a measure of the rate of price increase in an economy for a basket of selected products…

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Q: researcher collected sample data for 10middle-aged women. The sample had a mean serum cholesterol…

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Q: For a Student's t-distribution with mean O, standard deviation 1, and degrees of freedom 30, which…

A: Let, F be the CDF of t distribution with mean 0 and standard deviation 1 and degrees of freedom 30.…

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A: From the given scatter plot and equation Find the required

Q: Out of 500 people sampled, 70 had kids. Assuming the conditions are met, construct a 90% confidence…

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Q: Find the probability that x is between six and 12. X ~ N(9, 2)

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Q: An engineer has designed a valve that will regulate water pressure on an automobile engine. The…

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Q: Suppose that a new treatment is successful in curing a common ailment 66% of the time. If the…

A: given data  P(successfully curing a common alignment) = p = 0.66 n = 120 x = no. of treatment…