Explain the difference between σ and and between μ and μ

Q: Find the probability that a person has the virus given that his test outcome is positive. Find the…

A: Given:   Predicted infected  predict ed non infected  Total Actually infected   17 3 20…

Q: 11. An agency is conducting performance tests on different brands of skateboards. Tests show that…

A:

Q: 1. The number of typing errors on a page follows a Poisson distribution with a mean of 6.3. Find the…

A:

Q: 1. Four children are chosen from a class of 30 for a survey. How many ways can this be done?

A: Given problem Given that   1)  Four children are chosen from a class of 30 for a survey. The…

Q: ces bolts, and for each bolt there is a probability p of it b nt bolts being independent. A large…

A: *Answer:

Q: A new vaccine against the coronavirus has been developed. The vaccine was tested on 10,000…

A:

Q: Assume X is normally distributed with a mean of 13 and a standard deviation of 2. Determine the…

A: as per Bartleby guideline expert have to answer first question three subparts only dear student…

Q: (a) A new car model has a design fault, as a result of which 10% of production cars have a…

A:

Q: "The bread is warm or the potatoe p: The bread is warm. q: The potatoes are cooked. Determine the…

A: Here  we have to write the given statement in symbolic form and construct truth table for it " The…

Q: The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05…

A: Solution-: Given: a=0.95, b=1.05 We want to find, (a) P(The thickness of a flanges that exceed 0.98…

Q: Question 20 Of a group of 30 teenagers who play video games, 22 play on the Switch console and 18…

A: Solution Total number of teenagers = n(T) = 30

Q: Suppose X~B(n,p) and E(X)=20,Var(X)=12, Can you find n=_ _p=_______?

A:

Q: wel (1) Pr( first = black, second = white ) = x3 = 18 = 3 (2) Pr( both are black ) = Pr(1st = black,…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: Remaining Time: 1 hour, 01 minute, 13 seconds. Question Completion Status: QUESTION 16 Copy of Mega…

A:

Q: What is the probability of rolling a six and a six when two fair number cubes are rolled? A P(6 and…

A: Given Two fair number are rolled

Q: Given a fair die and a fair coin, what is the probability of rolling an even number and get- ting…

A: Given Total number of possible outcomes =12

Q: Find the mean and variance of the continuous random variable X with probability density function…

A:

Q: Three dice were rolled. Find the probability of getting a number less than 10 if it is known that…

A:

Q: Develop three categorical questions for the survey.c. Develop three numerical questions for the…

A: Following are the three categorical questions:

Q: 18. Roenfeld Corp believes the following probability distribution exists for its stock. What is the…

A: To find: The coefficient of variation (Cv).

Q: = p₁ and John has a coin with Susan has a coin with P(head) P(head) = P2. Susan tosses her coin m…

A:

Q: Three dice were rolled. Find the probability of getting a number less than 10 if it is known that…

A: Given, Three dice are rolled. Sample space: n(s)=63=6×6×6=216 Thus, the sample space of three dice…

Q: Question 19 In a class of 26 learners, 4 of the 12 females wear glasses and 3 males wear glasses.…

A:

Q: Use Appendix Table III to determine to 5 decimal places the following probabilities for the standard…

A: Dear student according to the guidelines we solve only first three subparts only. Solution Here Z is…

Q: On Sundays 35% of the TV’s watch a program. Find the mean and standard deviation for the number of…

A: Given : probability of success, p=0.35 sample size,n=2000

Q: Directions: Calculate the following measure of position. (Ungrouped Data) Scores in a summative test…

A:

Q: c. The proportion of small and large car buyers from a car manufacturer are respectively P₁ =156/400…

A:

Q: .6 (a) Two sets of n independent trials are performed, independently of each other, and each trial…

A:

Q: A manager wishes to simulate 10 days of operation of an inventory system. The beginning inventory at…

A:

Q: 4. Given X~b(28,0.35), determine 202²P(X= r).

A:

Q: QUESTION Consider the following payoff Table The State of Nature Decision Alternative 0.77 1-0.77-…

A:

Q: The temperature in degrees Celsius at a certain location is normally distributed with a mean of 68…

A:

Q: What is the probability that either exactly two heads or exactly two tails will be thrown if six…

A: Solution

Q: The genotype of an organism can be either normal (wild type, W) or mutant (M). Each generation, a…

A:

Q: 1. [Short Answer] Construct (1) The frequency distribution (2) the frequency histgram (3)the…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: A camp director is interested in the mean number of letters each child sends during his or her camp…

A:

Q: 2. A graph has vertices of degrees 0, 2, 2, 3, and 9. How many edges does the graph have?

A: The Handshake theorem states that the sum of the degrees of the vertices of the graph  (that is, the…

Q: A spacecraft navigation system consists of components of two types - A and B connected in a…

A:

Q: In an experiment where 2 balls are drawn successively at random without replacement from a box…

A:

Q: The projection X of the radius-vector of a random point on a circumference of radius a onto the…

A:

Q: Six balls numbered 1 to 6 are placed in a bag. Some of the balls are grey and some are white. The…

A: Given: Six balls numbered 1 to 6 are placed in a bag. Some of the balls are grey and some are white.…

Q: About 25% of the population watches the evening television news coverage as well as the soap operas.…

A:

Q: A company that manufactures computer components has a 3% defective rate. If 12 components are…

A: Givenp=3%=0.03n=12Let "x" be getting no.of defective…

Q: The Venn diagram below shows the 11 students in Ms. Bailey's class. The diagram shows the…

A: Given n=11

Q: Let X, and Y be two random variables with respective means x, and Hy, and standard deviations ox,…

A:

Q: There are three kinds of vegetation in an ecosystem: grass (G), shrubs (S), and trees (T) (Bodine,…

A:

Q: Ophthalmology Table 2 comes from a paper giving the distribution of astigmatism in 1033 young men…

A: Arithmetic mean is given by,  x̄= ΣfiXi/Σfi Xi's are the mid values. .

Q: On what situations in chance experiments can the following probability distributions be used?…

A: The answer is below,

Q: A group of 20 students have been on holiday abroad and are returning to Norway. In the group, there…

A: Given: A group of 20 students have been on holiday  7 of them brought too much alcohol The customs…