write two numbers with mean 8 and variance 4

Q: Suppose x is a uniform random variable with a = 100 and b = 180. Find P(x > 120 | x < 140).…

A:

Q: The data represent the age of world leaders on their day of inauguration. Find the​ five-number…

A: Arrange the data in ascending order as follows: Data 47 48 49 56 58 62 64 Total…

Q: h) To describe any nominal variable, we use the statistical procedure-----

A: Definition of nominal variable * It is categorical variables * It does not have any intrinsic order…

Q: The closing price of Schnur Sporting Goods Inc. common stock is uniformly distributed between $20…

A: Given that  X is a continuous random variable.  Probability distribution function( pdf) X~U(a,b)…

Q: 8. A car salesman has 9 used cars for sale. They have a mean price of $6000. What is the total price…

A: q-8 given data sample size n = 9 sample mean x¯ = $6000 total price of all 9 cars ∑x = ?

Q: An independent consumer group states that, among all people with depression who use a new…

A: The claim is that the proportion of people who find relief from depression is 0.65. Given: Sample…

Q: An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for…

A:

Q: The viscosity of a liquid detergent is supposed to average 800 centistokes at 25°C. A random sample…

A: given data n = 16 x¯ = 812σ = 25claim : μ=800

Q: The number N of bacteria in a glass dish after thours satisfies the relationship log10(M) = 0.3 + 2t…

A: Given that: log10N=0.3+2t Here, N is the number of bacteria in a glass dish after t hours.

Q: The Nero Match Company sells matchboxes that are supposed to have an average of 40 matches per box,…

A: given data  claim : μ &gt; 40x¯ = 42.20σ = 8n = 92α = 0.01

Q: The defect length of a corrosion defect in a pressurized steel pipe is normally distributed with…

A: Concept: Z is known as Standard normal variable Z=(X-mean)/standard deviation Note: According to…

Q: Define mean absolute percent deviation?

A: The question is about error in forecasting  Introduction : There are following types of error in…

Q: Q1: Mention the required steps to get the following: a) Finding the percentile ranks of student…

A: The question is about kurtosis Introduction : There are 3 types of kurtosis 1 ) Leptokurtic : If the…

Q: why there is no .Nominal variable: and ordinal variable

A: Data in statistics is broadly divided into two categories  1) Quantitative data 2) Qualitative data.

Q: Among fatal plane crashes that occurred during the past 50 ​years, 634 were due to pilot​ error, 95…

A: The question is about relative frequency distribution  Given : To find : 1 ) Construct relative…

Q: APPENDIX 1. Graph each of the following sets of numbers. Draw a line through the points and…

A: Given that: 1 2 3 4 5 X Y X Y X Y X Y X Y 1 5 1 25 0 0 0 40 0 0 2 10 2 20 10 10 10 30 10 10…

Q: Explain coefficient of determination?

A: In the regression equation, the dependent variable is interpreted to be best estimated through one…

Q: Question: If E(X) = 4 and E(Y) = −2, what is E(X + Y)? A: 6 B: 4 C: 2 D: -2

A: The following information has been given: E(X)=4E(Y)=-2 We need to compute EX+Y.

Q: Weight/Height Tall Medium Short Totals 18 28 20 51 12 25 Obese Normal Underweight Totals 14 28 9

A: The tables the weight and height.

Q: The accompanying data set lists diastolic blood pressure measurements (mm Hg) of females. All of the…

A:

Q: Read and Understand Annabeth wants to find out the severity of ADHD symptoms of her fellow teenagers…

A: The mean and standard deviation (SD) of the experimental group is observed as 4.4 and 0.3,…

Q: model provides a better fit of the data? Forecast day 13 sales of fishing rods using the m

A: Day Rods Sold 1 60 2 70 3 110 4 80 5 70 6 85 7 115 8 105 9 65 10 75 11 95 12…

Q: Use the given data to find the equation of the regression line. Examine the scatterplot and identify…

A: Given data: x y 10 7.17 9 6.85 12 13.1 8 7.06 11 7.52 14 9.22 6 5.82 4 5.28 12…

Q: The error involved in making a certain measurement is a continuous rv X with the following cdf. 0…

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

Q: A weather forecaster predicts that the May rainfall in a local area will be between 1 and 7 inches…

A: Given that x is uniformly distributed and interval is 1 to 7 inch we have to calculate mean…

Q: Given the following data in measuring a distance of a certain line. DISTANCE NO. OF MEASUREMENTS…

A: Given that, DISTANCE NO. OF MEASUREMENTS 740.53 4 740.59 3 740.57 6 740.53 7

Q: 1.3. Complete the cell with an expression that evaluates to the chance that the number of successes…

A: Given: Sample size n=100 Probability of success p=0.26

Q: The mean finish time for a yearly amateur auto race was 185.21 minutes with a standard deviation of…

A: From the provided information, The mean finish time for a yearly amateur auto race was 185.21 that…

Q: Evaluate o = √npq, where q = 1 - p, for n = 190 and p = 0.8. 0= (Simplify your answer. Type an…

A: given data n = 190p = 0.8q = 1-p = 0.2find value of standard deviation (σ) = ?

Q: You are given the following information obtained from a random sample of 4 observations. 24 48 31 57…

A: a)   A random sample of size 4 is drawn from a population.

Q: Consider the following portion of data that lists the starting salaries (in $1,000) of newly hired…

A: by bartleby policy i can given only 4 subparts answers From given data we have ; N=11 Salary=x GPA=y…

Q: The basis for rejecting any null hypothesis is arbitrary. Theresearcher can set more or less…

A: Introduction The hypothesis is an assumption that is being tested.

Q: Q4. A manufacturer of tennis rackets intends to set 45 lb tension in one of its product lines. The…

A: Given that a manufacturer of tennis rackets intends to set 45 lb tension in one of its product…

Q: Brand & Model Overall Score Samsung Ultrabook NP900X3C-ADIUS Apple MacBook Air MCLL/A Apple MacBook…

A: Given data: Price($) Overall Score 1250 83 1300 83 1200 82 950 79 800 77 1200 74…

Q: A frequency table of grades has five classes (A, B, C, D, F) with frequencies of 3, 11, 16, 7, and 1…

A: Formula  Used: Relative frequency = Fn Where, F is the frequency and n is the sum of frequency.

Q: 4.8 4.9 5.11 5.9 4.11 5.6 DETERMINE THEIR VARIANCE (USE 4 DECIMAL PLACES, DO NOT INCLUDE THE UNIT)…

A: Given data is5.2,5.8,5.9,6.2,4.8,4.9,5.11,5.9,4.11,5.6sample size(n)=10

Q: Read and Understand "A look at the descriptive statistics for males and females show that male…

A: In the first que it is clear that the variance of females is higher than the variance that of males.…

Q: 6. The diameter of electric cables, say X, is assumed to be a continuous random variable with…

A:

Q: 1. What is the class width of the frequency distribution if you are to use 7 classes? 2. Form the…

A: given data here frequencies are given we have to find out class width frequency table and outlier…

Q: 4. It is thought that house prices in certain areas are correlated with the quality of schools in…

A: a(i) a(ii)  The relationship between  House price and School Index is linear as  School index…

Q: The following is a list of costs for the 12 different sandwiches sold at a cafe. 5.49         6.59…

A: Note: As per my policy i can answer only three sub parts. kindly repost the remaining sub parts.…

Q: Use your graphing utility’s linear regression option to obtain a model of the form y = ax + b that…

A: Given data:

Q: The body temperatures of a group of healthy adults have a​ bell-shaped distribution with a mean of…

A: Given that  Mean = M = 98.16 Standard deviation = SD = 0.65 X ~ Normal ( M = 98.16 , SD = 0.65 )

Q: Explain random numbers?

A: Introduction A no. in mathematics and statistics is an object which is used for counting, measuring…

Q: Calculate the Mean and Median for the following. 50-100 value Frequency 10 300-350 15 350-400 10…

A: Data given  CI frequency  50-100 10 100-150 30 150-200 40 200-250 70 250-300 60…

Q: A random sample of 15 college students were asked​ "How many hours per week typically do you work…

A: we will form the frequency table of the given data after arranging them into ascending order

Q: Use the given data set to complete parts (a) through (c) below. (Use a=0.05.) 10 9.15 8 8.13 Click…

A: The table shows the x and y values.

Q: Part 1 ​(a) Determine the​ mean, median, and mode for salary.   The mean salary is enter your…

A: Given that data  25, 30, 45, 50, 50, 55, 55, 55, 60, 75 NOTE:- According to bartleby guidelines…

Q: डे Bata collected at an airport suggests that an exponential distribution with mean value 2.435…

A: Given: Mean λ = 2.435 hours. Formula Used: Exponential distribution: Exponential distribution is a…

Q: 3. Referring to the four sets given in Prob. 2, find: (a) S₁ U Sz (c) S₂ S3 (b) S₁ U S3 (d) S₂ S4 4.…

A: Given that 4. Which of the following statements are valid?   (a) AUA = A (b) A∩ A = A (c)AU∅=A…