The probability of having 7 girls is_

Q: (a) Consider a t distribution with 24 degrees of freedom. Compute P(-1.00<t<1.00). Round your answer…

A: The degrees of freedom is 24.

Q: Study delermined that persons age 65 to 74 nave a certain symptom. A group of 19 persons age are…

A: Given

Q: 70% of the voters favor Ms. Stein. If 3 voters are chosen at random, find the probability that all 3…

A:

Q: What is the probability that at least one of them can be caught in a pond?  Round your answer to the…

A: Here Given  Total No OF fish =80 No of Fish From Pond= 80-34-30-4=12  No of fish from Other than…

Q: Run a regression analysis on the following bivariate set of data with y as the response variable. y…

A: Given that

Q: f the probability of a new employee in a​ fast-food chain still being with the company at the end of…

A:

Q: 1. If I want to get gas in the USA I can get some for $4.29 USD per Gallon right now, while it is…

A:

Q: If a study determines the difference in average salary for subpopulations of mechanical engineers…

A: Option A (not earining) is the correct option

Q: roblem No. 1: Suppose that Y1, Ya, Y3 denote a random sample from an exponential distribution with…

A:

Q: Let H denote the event that you flip heads, T denote the event that you flip tails, W the event that…

A:

Q: Ex-1 Write down the outcome set or the sample space in the following experiments: (a) A coin is…

A: We need to find the sample space in the following experiments: (a) A coin is tossed 2 times (assume…

Q: A study determined that 6% of children under 18 years old lived with their father only. Find the…

A: Given P=0.06 n=16 X=3

Q: 1. Calculate the t-test result for the following unpaired set of data: • Group One: 172, 175, 50,…

A:

Q: what is the probability that she will get: a. a fresh egg given that it is a chicken egg? b. a…

A: here define events  chicken egg = C fresh egg = F p(C) = 12/29 p(F) = 15/29  p( C and F ) = 8/29

Q: #1) An eight-sided die is rolled. A player wins if the numbers 3, 5, or 7 are rolled. a) Using…

A: In an eight sided die there are 8 outcomes , {1,2,....,8} The player wins if the numbers 3,5 or 7…

Q: Suppose we have three events A, B, and C. If P(A) > 0, P(B) > 0 and P(C) < 1, and we know that if…

A:

Q: A recent survey of students at Regina Mundi College included a question about the number of school…

A: We have given that,  Number of days missed (x)    frequency (f)  0…

Q: • Question 4 If n 400 and p (p-hat) 0.9, construct a 99% confidence interval. Give your answers to…

A:

Q: (a) Find P(X < 1.2). (b) Find E(X).

A: We have given that a random variable X has pdf, f(x) = { 1/18(9-x2) ,          0 ≤ x ≤ 3…

Q: There are 4 different Mathematics books, 7 different English books and 5 different Science books. In…

A: Given,no.of mathematics books=4no.of English books=7no.of science books=5

Q: Name The ble represents a family's monthly budget of 52050 Food $300.00 ing $850.00) Other $900.00…

A:

Q: what is 1/2x+36=1/4x+72

A:

Q: A coin is tossed 5 times. Find the probability that exactly 3 are heads. The probability that…

A: Given information- We have given that a coin is tossed 5 times. We know that- Probability of getting…

Q: Soalan/ Question 3 The weight of a certain population of young heifers is approximately normally…

A:

Q: and Andy not on the committee, or vice versa.

A: Given Mrs. Ruiz has 15 boys and 12 girls in her class.

Q: Formulate the null and alternative hypothesis, identify the level of significance, illustrate if CLT…

A: Given that 84% prefer to be contacted through online messaging. Null Hypothesis: H0:p=0.84…

Q: 6. A college foundation raises funds by selling raffle tickets for a new car worth $45,000. If 800…

A:

Q: Two cards are selected in sequence from a (a).1 standard deck. Find the probability that.. the…

A: here given , there are total 52 cards in standard deck there 4 suits in deck of cards  and  each…

Q: (4) Let X be a discrete random variable with domain D. Prove that Var(X) = E(X?) – E(X).

A:

Q: 3. Let the random variable Y have the p.d.f. g(y) = cy , –1< y <1, zero elsewhere. (i) Determine the…

A: A continuous function f(x) is said to be the probability density function of the continuous random…

Q: A random sample of 125 adults was given an IQ test. It was found that 73 of them scored higher than…

A:

Q: (a) Show that the random variable (2/0) E X, has a x2-distribution with 2n degrees of freedom.

A: Solution

Q: (a) the constant b in terms of a. (b) P(X>a). (d) X, X2 and o² . (c) P(a < X < 3a).

A: As per bartleby guidelines we can solve only first three subparts and rest can be reposted

Q: Q3) Evaluate triple integral dz dx dy.

A: Solution

Q: 5. The probability distribution of discrete random variable X is given by k for x = 1, 2, 3 x +1 P(X…

A: In question, Given that X is random variable having pmf P(X =x) = k/(x+1)    x = 1, 2, 3 Then we'll…

Q: A four-bit code word is any sequence of four digits, where each digit is either a 0 or a 1. For…

A: We have given that A four bit code word is any sequence of four digits where each digit is either 0…

Q: Suppose that the life expectancy of a certain brand of nondefective light pulbs is normally…

A: Given data,Mean μ=1200sd   σ=50If 30,000 bulbs are producedP(1130&lt;X&lt;1260)=?

Q: 9. Find the z value that corresponds to the given area. Interpret your findings. a. b.

A:

Q: 4 friends each choose a random number between 1 and 5. What is chance that any of them chose the…

A: 4 friends each choose a random number between 1 and 5. We need to find the chance that any of them…

Q: Q. Fit a Poisson distribution to the following data by Recurrence Relation Method. 5 6 7 210 80 | 28…

A:

Q: 12. Find the moment generating function of the random variable X, having p.d.f. х, for 0<x<1 f (x)…

A:

Q: A survey indicated that 12% of residents of a country have a great deal of confidence in banks and…

A: We have given that the the random variable X i.e, confidence in banks and financial institutions…

Q: Kai and Paula are two of the five members of a singing group. Every week, the group picks two names…

A: Here Given  There is 5 members group And 2 members are chosen for each week.

Q: The calculated average for the validation sample is compared to the known value to determine the…

A: Hypothesis tests are of two types- associational and difference.

Q: A problem in probability is given to three reviewees of mega, whose chances of solving it are 1/3,…

A: We have given that Let A , B, and C be the probability of solving =&gt; P(A) = 1/3      P(B) = 1/5…

Q: According to a report done by 5 &J Power, the mean lifetime of the light bulbs it manufactures is 45…

A:

Q: A thief steals stereo systems from the parked cars. Every morning he starts searching parked cars,…

A:

Q: Q 3/ In a certain city, the number of power outages per month is a random variable, having…

A: Given that.   X~N( μ , ?^2 )   μ=11.5     , ?=2.5   Z-score =( x - μ )/?

Q: EXAMPLE :- How many 3 digits number can be formed using digits 1,6,8,9,3,7 without repeating any…

A: Given digits is1, 6, 8, 9, 3, 7Total no.of digits=6

Q: EXAMPLE :- How many 3 digits number can be formed using digits 1,6,8,9,3,7 without repeating any…

A: Given digits is 1,6,8,9,3,7No. of digits = 6No.of digits to be formed = 3