Find the z-score that has 48.8% of the distribution's area to its left. The Z-score is (Round to two decimal places as needed.)

Q: [Q1] From the letters {A, B, C, D, E, F, G}, how many: (a) 3-distinct-letters codes can be…

A: Given the letters {A, B, C, D, E, F, G}. Using these letters we have to generate 3 digit ot 4 digit…

Q: (a) c (b) E[X] (c) E[X²]

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

Q: In how many ways could 5 chocolate bars be choosen from a display of 10 chocolate bars? a. 50 b.…

A: Given No.of chocolate bars in display(n)=10No.of chocolate bars to be choosen(r)=5

Q: Twelve books are placed on a shelf in random order. What is the probability tha their titles are in…

A: To find: The probability that their titles are in alphabetical order.

Q: 31% of adults say cashews are their favorite kind of nut. You randomly select 12 adults and ask each…

A: Solution

Q: 9- The probability density function of the random variable X whose moment x+1 generating function ()…

A: 9 Let us consider, the probability density function,

Q: In a competition, junior chefs make a gourmet soup by selecting 10 different ingredients. How many…

A: GivenNo.of different ingredients(n)=10No.of ingredients must include(r)=4

Q: A bag contains 5 red balls and 8 blue balls. Each time a ball is selected, its colour is noted, and…

A: Given: A bag contains 5 red balls ad 8 blue balls. Each time a ball is selected, its color is noted,…

Q: Which set of data would probably show a strong positive linear correlation?

A: here use Correlation  Correlation are positive , negative or No correlation  if there is Increase in…

Q: Question 3 A particular concentration of a chemical found in polluted water has been found to be…

A: Givenp=0.20n=20Let "x" be the number of fishes survivex~Binomial(n=20,p=0.20)P(X=x)=Cxn×px×(1-p)n-x…

Q: dence inter should reject Ho. Explain your reasoning. 0.54 right represent three samplings. Decide…

A: Solution Given That The three confidence intervals to the right represent three samplings. Decide…

Q: An examination consists of multiple-choice questions, each having five possible answers. Suppose you…

A: Let A be the event that you give the correct answer. Let B be the event that you know the answer.…

Q: The probability that the mean height for the sample is greater than 65 inches is (Round to four…

A: It is given that  Mean, μ = 64.2 Sample size, n = 65 Standard deviation, σ = 2.55

Q: A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed,…

A: From the provided information, The hypotheses are as follow: H0: p = 0.8 Ha: p ≠ 0.8

Q: Find the probability distribution of the random variable y, which represents the number of times…

A: Given, Y 1 2 3 f(y) 130 430 930

Q: In a box containing 8 red balls, 8 green balls and 8 blue balls where 3 balls will be drawn in…

A:

Q: If the probability of rain tomorrow is 65%, what is the probability that it will not rain tomorrow?…

A: given;Pr(it will rain tomorrow)=65%=0.65

Q: questions, each An examination consists of multiple-choice having five possible answers. Suppose you…

A: Event  A you know the answer B you guess the answer  C your answer is correct  P(A) = 0.75 P(B) =…

Q: I want it through probability and random variables with maximum speed Q4: b- Find the value of the…

A: Formula : ΣF(X) = 1

Q: Use the given confidence interval to find the margin of error and the sample mean. (4.41,8.05) The…

A: Given,(4.41 , 8.05)Upper limit(UL)=8.05Lower limit(LL)=4.41

Q: Vrite the claim mathematically and identity Ho and Ha. Choose the correct answer below. A. Ho: 260…

A: Given that  Sample size n =84 Sample mean =268 Population standard deviation =33

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 104 inches and a…

A: Given that.   X~N( μ , ?^2 )   μ=104     , ?=0.4   Z-score =( x - μ )/?

Q: Determine whether the claim stated below represents the null hypothesis or the alternative…

A: Alternative hypothesis is complementary  hypothesis of null hypothesis.

Q: 5- If X and Y are random variables having the joint density function f(x, y) = (6-x-y), 0 < x < 2, 2…

A:

Q: Harper's Index reported that the number of (Orange County, California) convicted drunk drivers whose…

A: Given Information: Probability of a repeat offender is still p=1560 r is the number of repeat…

Q: One calculates if the average number of Voodents of a cotton Farm is to da nams, it is Particular…

A: From the provided information, x f (x) -1 c 3 0.15 4 0.45

Q: Let the random variable X have the density function = {kx₂,0; f(x) (kx,0 ≤ x ≤ √√2/k 0,elswhere

A: Given information,

Q: Don’t show explanation

A: Residual = Observed value – predicted value e = y – ŷ

Q: Pandora, the owner of a food delivery app, knows from experience that the time needed to assemble a…

A:

Q: Let X denote a random variable having a distribution. If F(x)=ax³ where 0≤x≤(+3). Find f(x) after…

A:

Q: A number cube with faces labeled 1 to 6 is rolled once. The number rolled will be recorded as the…

A: Given: A number cube with faces labeled 1 to 6 is rolled once. The number rolled will be recorded as…

Q: The lengths of time (in years) it took a random sample of 32 former smokers to quit smoking…

A: From the provided information, Sample size (n) = 32 Population standard deviation (σ) = 5.4 Level of…

Q: 2- Two events A and B are such that P(A) = 0.5, P(B) = 0.3 and P(A/B) = 0.1. Then P(A|AUB) is O True…

A: Answer : - Given two events A and B  s.t.                 P(A)  = 0.5,    P(B) = 0.3   and   P(A|B)…

Q: D E Totals A 0.10 0.30 0.40 B 0.25 0.05 0.30 C 0.10 0.20 0.30 Totals 0.45 0.55 1.00

A:

Q: In a certain battery manufacturing plant, three factories, F1, F2, and F3, make 35%, 47%, and 18%,…

A:

Q: What is the probability that he/she does not study any of the three languages? (b)  What is the…

A: Here AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPARTS  R = Russian language  E = English Language  G…

Q: 1. What is the probability of getting the number 5 when a fair die is thrown? A. 0 B. 1/6 C. 1/2 D.…

A: If any one want to known the happening on an event then probability is used. It is calculated by…

Q: A. What is the probability that the chosen driver is wearing seatbelt and driving not under…

A: Suppose a study of driving under influence and driving without seatbelt produced the following data:…

Q: At a college, 33% of all students are taking a course in solar design, 48% are taking a course in…

A:

Q: 3. Given the cumulative distribution function of a continuous variable X, x < 0 0<x< 1. Please solve…

A:

Q: 10- The following Markov chain is irreducible /1/3 0 0 0 1 1/5 2/31 0 4/5/

A:

Q: 3. The table shows the predicted growth of particular bacteria after certain number of hours. Write…

A:

Q: items respectively how many different dinner combinations are possible?

A: here given , 5: At a Chinese restaurant, dinner for 8 people consists of 3 items from column A, 4…

Q: Suppose a random variable, x, follows a Poisson distribution. Let μ = 2.5 every minute, find the P(X…

A: The provided information is…

Q: A quality control supervisor inspects a production of 30 computer chips, 5 of which are defective.…

A: Solution Given problem is hypergeometric distribution problem the hypergeometric distribution with…

Q: Let X be a continuous random variable with density function fx(x)= (a) Find P(X> 10). (b) Find the…

A: Solution Given

Q: Let X Unif [4, 10]. (a) Calculate P(X 1). (c) For 4 < t < 6, calculate P(X<t | X < 6)

A: Solution  Given That, Let X ~ Uniform [4, 10]. Calculate P (X &lt; 6). Calculate P (|x - 7| &gt; 1).…

Q: 2- Let the probability density function of the random variable X is - {² (+)* 0 Then My(t) is f(x) =…

A:

Q: Find the margin of error for the given values of c, s, and n. c=0.99, s=2.1, n=17 Click the icon to…

A: Given,c=0.99 , s=2.1 , n=17degrees of freedom(df)=n-1df=17-1=16α=1-0.99=0.01α2=0.005t0.005(16)=2.921…

Q: fore 1918, approximately 60% of the wolves in a region were male, and 40% were female. However,…

A: Solution  Given That, Before 1918, approximately 60% of the wolves in a region were male, and 40%…