. Compute Standard deviation from the following data 60 Marks 10 20 30 40 50 No. of students 20 7 3. 8. 12

Q: Determine the probability of drawing either a two or a ten? Write your answer as a reduced fraction....

A: here total cards in standard deck = 52 there are total 4 suit each suit contains 13 cards  

Q: While seafood consumption has health benefits as part of a well-diversified diet, the quality of the...

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Q: that at most 4 out of 5 selected offspring will have two recessive genes?

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Q: b) The following data shows the number of hours slept by a patient in 1 weeks 12 18 09 16 11 10 08 C...

A: For the given data Find mean = ? s.d =? 95% Confidence interval =?

Q: (a) 60% of the values are greater than x. enter an appropriate value rounded to 2 decimal places (b...

A: Note: According to Bartleby expert guidelines, we can answer only first question with their three su...

Q: An ecologist randomly samples 20 plants of a specific species and measures their heights. He finds ...

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Q: Illustration 11.28. In a continuous frequency distribution grouped in intervals of 2, the first four...

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Q: n light of evidence about how COVID-19 spreads, the CDC recommends that people wear a cloth facemask...

A: Given data,  

Q: Example 20. Calculate the median from the following data : Wages Number of workers Less than 100 Les...

A: Solution is given:

Q: In a University of Minnesota study, 50 individuals with a rare cancer were followed for 24 months fr...

A: Given the follow up data of 50 individuals with a rare cancer for 24 months from date of diagnosis a...

Q: Compute quartile deviation from the following а: Height in in.ches No. of students 58 15 59 20 60 32...

A: We have given that,  Height (x) :- 58, 59, 60, 61, 62, 63, 64, 65, 66 Students (y) : 15, 20, 32, 35,...

Q: complete the probabílity dístríbution. rable for the number 'oF textbooks Purchased by a Class Of 23...

A: For the given data Find Relative frequency Expected value =? Standard deviation = ?

Q: Suppose the following model Yi = B1 + ui Where Ui is assumed to be normally distributed with mean ze...

A:

Q: Compute the mean of the random variable with the given discrete probability distribution. P(x) 0.2 1...

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Q: For numbers 7 and 8: The seedlings of a particular type of tree are randomly dispersed in a large ar...

A: We have given that λ = 6 Here we will use Poisson distribution to find the required probability

Q: A random sample of 14 cigarettes of a certain brand has an average nicotine content of 4.4 milligram...

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Q: Calculate the semi-interquartile range and quartile coefficient from the following : Age in years No...

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Q: Think about the LED suribozrd example from the Ch 9 Powerpoint presented during class Suppos we cond...

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Q: Question 2 of 8 The following probability mass function is for the random variable X. What is the va...

A:   X 5 6 7 8 P(X) c 2 c 3 c 4 c

Q: An electrical firm manufactures light bulbs that have a length of life that is normally distributed ...

A:

Q: "The weights of 1,000 children, in average, is 58kg with standard deviation of 18kg. Suppose the wei...

A: Solution-: Given: μ=58,σ=18,n=1000 We find, how many children weight between 48kg and 57kg?  

Q: a) what is the probability that you will win  b) what are your expected earnings  c) what have you...

A: HERE GIVEN, You purchased a single ticket for $5 and there were  total 700 tickets sold. The top pri...

Q: was found that 18 developed cancer of the brain or nervous system Assuming that cell phones have no ...

A: *Answer:   

Q: The mean of 200 items is 48 and their Standard Deviation is 3. Find : (i) The sum of all the items, ...

A:

Q: the probability distribution function of the profit gained by “SmartB” from a phone battery

A: SmartB” owns a phone battery assembly line which provide phone battery to a mobile company. It is kn...

Q: 12% of all Americans live in poverty. If 31 Americans are randomly selected, find the probability th...

A: Note: According to Bartleby expert guidelines, we can answer only first question with their three su...

Q: 3(8x – x²) Suppose that f(x) = - for 0 7) = i (e) Determine x such that P(X < x) = 0.99. X = i

A: As per our guidelines we are suppose to answer three sub parts. Given,f(x)=3256(8x-x2)     ;   0&lt;...

Q: Activity 1: Analyze the following and construct a graph. (Apply what you had learned in your assignm...

A: Given: Year Cost 2010 1.4 2011 1.55 2012 1.61 2013 1.65 2014 1.78 2015 1.9

Q: Problem 1: Asking Embarrassing Questions, Politely When doing polling, for instance to figure out ho...

A: 5. Given Information:    X=70N=100P^N=XN=70100=0.7  

Q: (a) P(X 1); (c) P(-2 < X < 3);

A: Here AS PER POLICY I HAVE CALCULATED 3 SUBPART PLZ REPOST FOR REMAINING  here  use standard normal d...

Q: Recall the following salary data from 10 Lad Factory employees.  Staff 1 2 3 4 5 6 7 8 9 ...

A: Given: Staff Salary (in k) 1 20 2 21 3 22 4 20 5 19 6 20 7 18 8 21 9 100 10 1...

Q: The proportion p of residents in a community who recycle has traditionally been 60% . A policy mak...

A:

Q: Answer question 4 to 5

A: Graph is a pictorial representation of data in graphical form.

Q: Find the conditional PMF of Y , given X = x, for x = 0, 1, ..., 20.

A:

Q: From the values of the factors given below, find the corrected values of the first four Moments abou...

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Q: The table summartzes results from pedestrian deaths that were caused by automobile accidents. Pedest...

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Q: Which two of the following cannot be used to assess the goodness of fit of a regression model

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Q: A binomial probability experiment is conducted with the given parameters. Compute the probability of...

A: Excel functions to find Binomial probabilities : 1) To find exact probability { P( X = x ) } use Exc...

Q: Use the Venn Diagram to determine the following probabilities.

A: Here AS PER POLICY I HAVE CALCULATED 3 subparts kindly REPOST for remaining Here  There are total 80...

Q: Below is a list of all possible outcomes in the experiment of rolling two die. 1, 1 1, 2 1, 3 2, 1 2...

A:

Q: . Aurah wanted to know the distribution of the number of students with blood type O. She randomly se...

A: GivenNo.of students selected for recording their blood type(n)=6The probability of a student having ...

Q: Income at the architectural firm Spraggins and Yunes for the period February to July was as follows:...

A: The mean square error is defined as the square of the difference between actual and estimated values...

Q: What type of sampling technique does this represent

A: here use basic of sampling method

Q: The probabilty that a truck uill be going over the Speed Timit on 1-77 southis about 80%.1suppose a ...

A:

Q: Each spinner is spun once. Find the probability of each (Note that there are repetitions): parts 1 4...

A: Consider the two spinners are spun independently. a) P(A and 1): PA and 1=PA×P1                    =...

Q: III. Evaluate each expression. 1. 13! = %3D 2.10! = 3.7! =

A: 1) 13! 13*12*11*10*9*8*7*6*5*4*3*2*1 13! = 6227020800 2) 10! 10*9*8*7*6*5*4*3*2*1 10! = 3628800  

Q: 1. A shopping mall estimates the probability distribution of the number of stores mall customers act...

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Q: From the following data calculate first four moments and also find the value of r, Monthly profits N...

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Q: n. How large of a sample size is required?

A: here MOE  = 0.03 p =0.28 z critical for 95% confidence level = 1.96 s

Q: Use the confidence interval to find the estimated margin of error. Then find the sample mean.

A: