Brad has to select 5 students from a class of 43 girls and 21 boys. What is the probability that both students chosen are Girls?

Q: Q6/ Find the probabilities that a random variable having the standard normal distribution will take…

A: here given ,  a random variable with standard normal distribution have mean = 0 and Standard…

Q: If the probability distribution of a continuous random variable that has values between y = 1 and 3…

A:

Q: Ann and Bill play rock-paper-scissors. Each has a strategy of choosing uniformly at random out of…

A:

Q: In a certain factory. Three machines produce pencils. For factory evaluation, samples were chosen…

A: Given Information: Type of production 1st machine 2nd machine 3rd machine Good 200-N 200+N…

Q: A group of volleyball players consists of four grade-11 students and six grade-12 students. If six…

A:

Q: 4. At the same carnival, another game is played by flipping the same weighted coin in #3 and rolling…

A:

Q: a. Determine the expected value of X. b. Determine the expected value of Y. c. Determine the…

A: As per bartlby guidelines we can answer only first three subpart and rest can be reposted

Q: If E denotes the expectation the variance of a (random variable X is denoted as (E(X))^2 - E(X

A: Given: If E be the expectations then varience of random variable x  Var(x)= (E(x))^2-E(x)  a); True…

Q: A bowl contains twelve batteries of which four are new, five are used (working) and three are…

A: GivenX denote number of new batteries chosen Y denote number of used batteries chosen Total number…

Q: A fair coin (P(heads) = 0.5) is flipped 6 times. What is the probability of flipping fewer than 3…

A: Binomial distribution is given by

Q: a. Determine the variance of 2

A:

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

A:

Q: andom variable has probability stribution: x= 0,1, 2 ,3 ,4, 5,6,7 and P…

A: We know that the  By total probability law, sum of all the probabilities of a random variable is…

Q: 5. Write an explicit formula for the sequence 2, 3, 6, 11, 18,... O an = n² + n O an an = n² + 3 O…

A: Given problem Given that   5) Write an explicit formula for the sequence 2, 3, 6, 11, 18, ... Ans)…

Q: 10 10 (96), (9)(3) + 18 18 (3⁹) (15) 3 = 0.215686 ans

A: Given that

Q: f (x, y) 1 0.05 0.05 0.00 g (x) 0.10 a. Determine the mean of X. b. Determine the mean of Y. c.…

A: As per our guidelines we are suppose to answer only three sub parts. Mean of X (E(X))=∑X.g(x)

Q: find the probability that more than three calls are initiated in any 9 sec period.

A: here given , telephone calls are initiated through an exchange at the average rate 30 per minute and…

Q: An airline company is considering a new policy of booking as many as 218 persons on an airplane that…

A: Given n=218 P=0.90

Q: A random sample of 50 employees is chosen from a company. The average salary of the 50 employees is…

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

Q: The healing time for a broken clavicle is from a Normal distribution with a mean of 41 days and a…

A: Given,mean(μ)=41standard deviation(σ)=6

Q: Is the given statement true or false? False O a. b. True "Cr= "Cn-r

A: Solution-: Is the given statement true or false? nr=nn-r

Q: he lifespan (L) of each of 2000 valves is measured and given Calculate the probability that the…

A: Given Information: Lifespan (hours) Number L < 400 200 400≤L<600 230 600≤L<800 931…

Q: If E denotes the expectation the variance of a random variable X is denoted as (E(X))^2 - E(X) True…

A: We will check above statement is true or false by using variance in expectation form

Q: 26 Is it possible to take a walk around the city whose map is shown below, starting and ending at…

A:

Q: Q5//Four technicians regularly make repairs when breakdowns occur on an automated production line.…

A: Given: Four technicians regularly make repairs when breakdowns occur on automated production line.…

Q: Which of the following is a false statement?

A: Dependent events are those , first events probability affect the probability of other event in…

Q: Let probability that a child will be born with black eyes is 1/3, determine the probability that…

A: It is given the probability that a child will be born with black eyes is 1/3 i.e. p=1/3. It has been…

Q: 0.10, and 0.20, respectively, what is the probability that the system functions?

A: here given ,  p(A') = probability of A fail =  0.10 , so p(A) = 1- p(A') = 1 - 0.10 = 0.9  p(B') =…

Q: Q4/ The average on a statistics test was 78 with a standard deviation of 8. If the test scores are…

A:

Q: Calculate the means and standard deviations of:37, 26, 19, 21, 19, 25, 17 6.9 ;3 .a O 2.414 :3 .b…

A: Mean is the measure of central tendency. It is the most used measure and it greatly affected by th…

Q: (i) (ii) (iii) Find P(Q). Find P(R). Are events Q and R exclusive? Justify your answer.

A: HERE AS PER GUIDELINES I HAVE CALCULATED 3 SUBPARTS OF QUESTION  two 12 sided dice are  thrown ,…

Q: A survey conducted for the Northwestern National Life Insurance Company revealed that 70% of…

A: It is given that n = 20 and p = 0.70.

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

A: AS PER COMPANY GUIDELINE I SOLVED ONLY 1ST QUESTION THANK YOU.   Ans ; what is the probability of…

Q: Q2 (a) The discrete random variable has the probability distribution as in Table Q2. Table Q2:…

A:

Q: 3) a) What do this know about bootstrap ? b) when do we use an example you method (explain…

A: Bootstrap Method

Q: 4. Assume that the life of laptop brand X is normally distributed. It was found that the average…

A: As per company guidelines i solved only first question .thank you  Given X~μμ,σAverage μ= 5 year…

Q: A continous random variable x has p.d.f.,then a. f(x) >=1 b. f(x) >==0 O C. 0=;0

A: In above question we will talk about it is true or not for probability density function(pdf)

Q: f(x, y) = ) = (x ² + 232,0. +3,0 < x < 1,0 < y < 2, elsewhere. 0, g(x)= 2x (x + 1/3), h(y)= 1/3 +…

A: Given f(x,y)= x2+xy/3 ;0&lt;x&lt;1, 0&lt;y&lt;2  Note: According to Bartleby guidelines expert solve…

Q: Calculate the means and standard deviations of:37, 26, 19, 21, 19, 25, 17 6.9;3 .a O 2.414 :3 .b O…

A: Mean and sd are calculated using respective formulas.

Q: reate a frequency and probability distribution of the sample means.

A: here given  population (1,2,3,4,5 ) now sample of size 3 are selected , so 5C3 = 10 sample are…

Q: Q2/suppose there were six kinds of toppings that one could order for a pizza. How many combinations…

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Q: The probability a chip is manufactured to an acceptable standard is 0.87. A sample of six chips is…

A:

Q: Calculate the means and standard deviations of:37, 26, 19, 21, 19, 25, 17 a. 3; 7.141 O b. 3; 2.414…

A: Given the data set we have to find mean and standard deviation of the dats set.

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: Use the spinner below. 12 1 11 2 10 9 8 7 P(3 or 5) = Round answer 4 places after the decimal if…

A: To find: P( 3 or 5 ) = ?

Q: A bowl contains twelve batteries of which four are new, five are used (working) and three are…

A:

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: Drawing a blue marble? ?(P( Answer )=)= Answer Drawing a marble that is…

A: According to our guidelines, we can answer only three sub-parts. So, please repost the rest parts.

Q: A discrete random variable has probability distribution: x= 1, 2,3,4, 5 and P(x) =0.12,0.15, 0.23,…

A:

Q: ) Compute the upper and lower control limits if samples of size 6 are to be used. (R UCL = 134.85 x…

A: It is given that Mean = 127.5 SD = 0.4 And sample size n = 6