. How many students obtained scores between 74.5 to 84.5? . How many students obtained scores between 64.5 to 74.5?

Q: 24. The probability that a river flow exceeds 2000 m3/sec is 15%. The coefficient of variation of…

A:

Q: The number of typing errors on a page follows a Poisson distribution with a mean of 6.3. a. P(x=6)…

A: Here Given for No of typing errors on a page Follows Poisson distribution with mean =λ= 6.3 So  Here…

Q: In three boxes are capacitors as shown in Table below. An experiment consists of first randomly…

A: Given:

Q: Orders for a computer are summarized by the optional features that are requested. The proportion of…

A:

Q: A materials engineer wants to understand the relationship between the strength of plastic cases and…

A: Given: The data given is as shown below Temperature (x) Strength (y)  185 5150 183 5125 187…

Q: Each member of a random sample of 19 business economists was asked to predict the rate of inflation…

A:

Q: 9. One merchant has seven Asava horses (A), a second has nine Haya horses (H), and a third has ten…

A: Given, One Merchant has seven Asava horses (A), a second has nine Haya horses (H) and third has ten…

Q: If y = 2x-5, x is a r.v., then E(y) can be calculated by M', (t = 0)=(e-st M, (2t)) when t = 0. O…

A:

Q: Ex10: Let X be a normal distribution with a mean of 5 and standard deviation 1. Find: a/ P(X= 5) and…

A: Solution

Q: 0 20 40 60 80 12 Force (N) Length (mm) 21 100 185 255 350 Use the table of measurements of length…

A: Given: The data is as shown below Force Length 0 21 20 100 40 185 60 255 80 350…

Q: X be let P(X)= 1 213 (-√5 < X<√5) Y.V Pind P{/X/7/1.5}.

A: Given,f(x) = 123   ; -3&lt;x&lt;3

Q: How many different 2 card hands can be dealt from a deck of 52 cards? Your answer is :

A: Combination formula : nCr = n! /(n-r)! r!

Q: Use different ways to show all possible combination in this situations

A: Here use different ways of representing a total possibilities Here use listing , table, and tree and…

Q: 8. You select 5 cards from a standard deck. What is the probability that you will have at least 2…

A: The total number of cards in a deck =52 The number of ace cards =4 The probability of an event E can…

Q: $77. Determine the odds against the event occurring. 1. The probability of an event occurring is

A: Comment: As per the our company guidelines we are supposed to answer only one question. Kindly…

Q: Question 16 options: Determine the number of different 3-people or 4-people committees that can be…

A:

Q: The guidance department has reported that of the senior class, 4.3% are members of Key Club, K, 7.6%…

A: Here, P(K) =0.043 P(P) =0.076 P(Both)=0.019

Q: A game has three possible outcomes: X, Y, or Z. If P(X) = 0.6 and P(Y) = 0.3, what is the…

A:

Q: Use the following information to answer the next two questions. An Italian deck of cards, which is…

A: Given, An Italian deck of cards, which is made up of 40 cards: 4 suits such as Denari, cluns, Swords…

Q: 6. The probability that John will be accepted into the business program at Probability College is…

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

Q: If x andy are stochastically independent r.v.³ and E(x) = 4, E(y) = then the mean of x and y (E(xy))…

A: Solution

Q: Part 1 of 3 Explain the steps you take when you calculate the probability for P(Z > #) using a…

A: First of all, to find the value of P(Z &gt; #), look at the sign of #, whether it is -ve or +ve. If…

Q: Median Class Interval 0-9 10 - 19 20-29 30-39 40 - 49 fi 6 4 8 5 7 n = < CF

A: Given data is  Class Interval fi &lt;CF 0-9 6   10-19 4   20-29 8   30-39 5   40-49 7…

Q: 6. A family has two children. Suppose that the bird of each child is an independent event and that…

A: C:the family has one boy and one girl. D: the family has atmost one girl. Family consists of only 2…

Q: 5. The number of credits being taken by a sample of 13 full-time college students for a AMA semester…

A: The number of credits being taken by a sample of 13 full-time college students for a semester are…

Q: 13. Tony has four cans of juice-one can of orange, one of pineapple, one of calamansi, and one of…

A: Note: We are supposed to solve only one question at a time. Kindly repost the other question…

Q: Ex 5: On average, a textbook author makes two words processing errors per page on the first draft of…

A: To find: a. Four or more errors b. No errors

Q: A coin comes up heads with probability p and tails with probability q = 1 - p. For the moment,…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Consider a continuous random variable X with the probability density function (pdf) x 0< x≤2 fx(x) =…

A: a) The value of c is obtained below: ∫02fxdx=1∫02cxx2+1dx=1c*12lnx2+102=1c*12ln5=1            c=2ln5

Q: An urn contains 4 balls: 1 white, 1 green, and 2 red. We draw 3 balls with replacement. Find the…

A:

Q: You wish to determine if there is a negative linear correlation between the age of a driver and the…

A:

Q: Every day a kindergarten class chooses randomly one of the 50 state flags to hang on the wall,…

A:

Q: If a r.v. x~Geo), then p(x > 6|x>4) equal to O Option 3 O Option 1 314 - 9 16

A: Geometric distribution is given by

Q: My class intervals were 4.5-4.4, 4.4-4.5, 4.5-4.6, 4.6-4.7, 4.7-4.8, 4.8-4.9 Is this not correct?

A:

Q: What is the probability that three Poisson random independent variables A,B, C, with parameters 1,…

A:

Q: the slope and y-intercept to the nearest thousandth. Grades on Midterm and Final Exams Grades on…

A: Given

Q: AutoSave Off Off Search (Alt+Q) File Home Insert Draw Design Layout References Mailings View Help…

A: Given that  Using excel descriptive statistics

Q: If x G(5,4), then 2X Y = ~ 4

A: Solution

Q: Suppose 25% of all cars in a particular state emit excessive pollution. A particular issions test is…

A:

Q: then E(y) and V(y) are

A: here given , y =  5x-1  E(x) = 2,  v(x) = 1

Q: If x~N(μ,0²), then (271) ²~... Option 2 Option 1 ********* N(0, 1) G (1,2) x² (2)

A: Solution-: Given: X→N(μ,σ2) then (X-μσ)2....

Q: John Michael buys a bag of cookies that contains 8 chocolate chip cookies, 8 peanut butter cookies,…

A: The total number of cookies is  8×4 =32. The total number of sugar cookies is 8. The total number of…

Q: Given a p.m.f. of x as below: (e-33x f(x) x = 0, 1, 2, ... = x! 0 O. W and y = 2x, then the p.m.f.…

A: In question, We have given the pmf of random variable X and Y = 2X then we'll find the pmf of Y. The…

Q: 1. If two balls are drawn from the box with replacement, compute (a, b, c, and d). 2. If two balls…

A: Given problem Given that   Red balls = 3 White balls = 2 Total balls = 5

Q: The following function is cumulative distribution function. 0 x < -5 0.30 -5 ≤ x < 35 F(x) 0.80 35 <…

A: Cumulative distribution function is given. We have to calculate mentioned probability.

Q: Ex6: Assume X is normally distributed with a mean of 5 and a standard deviation of 4. Determine the…

A: Given data: Mean = 5 Standard deviation = 4

Q: We have an urn with 3 green and 4 yellow balls. We choose 2 balls randomly without replacement. Let…

A:

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: Here we have to find the probability they all from restaurant C

Q: Use the following information to answer the next question. A child has a box containing 8 toy cars…

A: 8)  A box contains 8 toy cars and 6 toy trucks. The boy reaches in and randomly selects 2 toys one…

Q: There are 6 pink, 5 gray and 6 blue marbles in a jar. If one of these is randomly selected, then…

A: