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Q: Use the spinner below. 12 1 11 2 10 3 9. 4 5 6. 7 P(10) = %3D

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Q: - T-test (Independent Sample)

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…

Q: 1. In how many ways can 8 members of Board of Directors be chosen from 5 juniors and 7 seniors if…

A: Let us suppose there are three marbles viz. a red, a green and a blue. From these, there are three…

Q: Out of 800 families with 4 children each, what percentage would be expected to have no girls? Assume…

A: From the provided information, There are 800 families with 4 children each. The probability of girl…

Q: Consumer Reports uses a survey of readers to obtain customer satisfaction ratings for the nation's…

A: There are two independent samples which are Publix and Trader Joe’s. We have to test whether there…

Q: A continuous random variable X that can assume values only between X = 2 and 8 inclusive has a…

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Q: (a) Find a power series representation of F(x) (write down the power series using sigma notation).…

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Q: 26. A card is drawn at random from a standard deck of cards. Find the probability of drawing 2 or…

A: Given that  There are 52 card in the deck in which they divided into two color i.e red(26) and black…

Q: expected profit of 1 percent of the amount it would have to pay out upon death. Find the annual…

A: here take C = premium expected profit  = 1% of 200000 = php 2000 p(die during the year ) = 0.02 x=…

Q: 25. A pair of dice is rolled. What is the probability of getting a. a total of 6 or 8? b. a total of…

A: Given that,  a pair of dice is rolled. We need to find the probability of getting: a. a total of 6…

Q: the bag and not replaced. If the number is even, a second disc is drawn from the Bag. If the IirSt…

A: here given, A bag contains seven discs, numbered from 1 to 7 inclusive. A disc is drawn at random…

Q: A certain type of storage battery last on average, 3.0 years with a standard deviation of 0.5 year.…

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Q: Compute the number of ways we can select n fruits from 4 types of fruit (assume an unlimited supply…

A: Given 4 types of fruit (apple, banana, orange and peach)

Q: Write the Sample space, outcome or event of the ff: 2. A bag contains six identical balls: two…

A: let E is the event of drawing 3 balls from the bag and S denote the sample space Hence, total…

Q: The lifetime, in years, of a certain type of electrical switch has an exponential distribution with…

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Q: Write the Sample space, outcome or event of the ff: 5. Choosing 2 letters from the word GREEN. Write…

A: formula used: let E=event of choosing two letters from the sample space and S denote the sample…

Q: A company manufactures panes of glass. The probability that a pane of glass has bubbles is 0.01. If…

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Q: For a random variable X E(X) = 1.27, E(X²) = 3.79 The variance of X is equal to Select one: O 2.52…

A: We have given that,  E(X) = 1.27 and E(X2) = 3.79 Then  We will find the variance of X  ?

Q: In a preparation test, past data showed that 40% of the students came unprepared. In a sample of 8…

A: We have given that p = 40% = 0.40 n = 8 X follows the Binomial (8, 0.40)The PMF of the Binomial…

Q: Activity 5.6 The number of eggs X laid by an insect is known to have a binomial distribution with…

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Q: Show E(X)

A: Here given joint distribution of x and y

Q: Test the claim that the mean GPA of night students is significantly different than 3.1 at the 0.2…

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Q: 28. A box contains 5 green, 7 yellow, and 10 orange ping pong balls. How many ways can 5 balls be…

A: For the given data Find

Q: Suppose two random variables X and Y have a joint probability density function (pdf): S1/2, if |æ| +…

A: Given the joint pdf of the random variables X and Y as fx,y=12,  if x+y≤10,       elsewhere

Q: 4. A university is offering two courses, one in Statistics and the other in Mathematics. These…

A: Number of students=300  Number of students in Statistics=85 Number of students im Mathematics=65…

Q: the odds against the event happening?

A: here p = probability of event  = 88/89

Q: Let X and Y be jointly cantinuous random variables with joint PDF is given: $ X,Y (x.y) = (1+x*y)…

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Q: -. How many triangles collinear points? can 'be drawn on a plane using 8 non-

A: Given:  8 non collinear points  then no of possible triangle can be formed using the given 8 non…

Q: If the F test leads us to reject the null hypothesis, we must then conclude that the two population…

A: We have given that,  If the F test leads us to reject null hypothesis, must then concluded that the…

Q: There are two machines available for cutting corks intended for use in wine bottles. The first…

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Q: # 5 Let X denote the random variable that gives the sum of the faces that fall uppermost when two…

A: Solution is attached image below

Q: 1 Student exam results as a percentage are modelled by a Normal distributionwhere X- N(75, 100).…

A: (1) X~N(μ, σ2) = X~N(75, 100)  Let X be the random variable from normal distribution with mean (μ) =…

Q: Probability: Intersection of Dependent Events Determine the following probabilities. Enter your…

A: GivenTotal no.of coins in a jar = 29No. of pennies coins = 6No.of nickels coins = 5No. of dimes…

Q: and simplify any fractions as needed. What is the probability that Roy will choose a blue marble…

A: We have given that Roy has 12 marbles of two colours white and blue. Each marble is labeled with a…

Q: A single digit between 0 and 9 is randomly chosen, and a single letter from A to Z is randomly cho…

A: Given data, A single digit is between 0 and 9 The possible digits are 0,1,2,3,4,5,6,7,8,9 The vowels…

Q: 1. What is the probability that no beds while be occupied at the north hospital while the south…

A: Here AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPARTS    Here gives joint distribution table of X…

Q: Choose the correct answer below. O A. No, because in this situation the distribution is skewed to…

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Q: Test the claim that the mean GPA of night students is significantly different than 2.1 at the 0.01…

A: Given  Population mean μ=2.1,  level of significance ɑ=0.01

Q: For a probability distribution X, if E(X) = 0.35 then E(3X-2) = Select one: O 1.05 O -1.05 O 0.95 O…

A: Assume that X is a random variable.

Q: 300 students were surveyed. 100 students from 3 different grades were identified and asked if they…

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Q: expected number of pens without ink is:

A: Here use hypergeometric distribution because without replacement model

Q: a. an even number or a 3? b. an odd number or a 4? C. an even number or a 1?

A: We have given that,  A die is rolled then the sample space (s) is,  s = { 1, 2, 3, 4, 5, 6 } = 6…

Q: Suppose that O is a uniform random variable on the interval (-a/2, 1/2). Let T = tan 0. Find the PDF…

A: It is given that a random variable Θ follows uniform distribution on the interval -π2,π2 Since the…

Q: A safe box requires a new user to set up a 6-digit code before using it. The user is allowed to only…

A: Given Information: A safe box requires a 6 digit code. The user is allowed to only set up the code…

Q: 16. In how many ways can a committee of 4 be formed trom 6 girls and 7 boys if there are 2 boys and…

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Q: EXPLAIN THE STEP BY STEP SOLUTION IN SENTENCES/PARAGRAPH. An adult rabbit's average length is 30cm,…

A: The mean is 30 cm and the standard deviation is 4.

Q: Show Corr(X, Y)

A: The joint probability mass function of X and Y is  f(x,y)=(x+y)/21   , x=1,2,3 and y=1,2

Q: 4 The mass of packages from a particular machine are normally distributed with a mean of 100g and…

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Q: Cost of Pizzas A pizza shop owner wishes to find the 95% confidence interval of the true mean cost…

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Q: 3. What is C(7,1)? А. 1 В. 7 С. 14 D. 49 А. 11 4. What is the combination of 8 objects taken 3 at a…

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