An unprepared student takes a 10 question TRUE/FALSE quiz and ended up guessing on all the problems. Find σ. Round answer to 4 decimal places

Q: Outcome Frequency 1 6 QUIZ: Direction: Choose the letter of the correct answer. 2 2 (For items 1&2)…

A: Probability is the measure that determine the likelihood occurrence of an event. Event that involves…

Q: Every morning Ramona misses her bus with probability 1/10, independently of other mornings. What is…

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 O…

A: Mean and sd are calculated using respective formulas.

Q: A coin weighted so that P ( H) =3/4 and P( T ) = 1/4 is tossed three times . Let X be the random…

A: Let X be the random variable which denotes the longest string of heads which occurs .  First…

Q: Instructions: Given that a bag of skittles has 15 blue candies, 16 orange candies, 12 yellow, 14…

A: According to our guidelines we will answer only three subparts.  For remaining answers please put a…

Q: If the average number of rodents in a cotton farm with a surface area of 20 dunams is 2 per dunum,…

A: Given : Mean =  λ = 2

Q: 3. There are 64 children in year 4. a) 8 are off sick. What fraction of children is left? b) 48 stay…

A: Given : There are 64 children in year 4.

Q: picked at random. Calculate the probability that it is reliable.

A: HERE FROM GIVEN INFORMATION  p(A) = probability that component manufacture by A = 0.50  p(B) =…

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A: The hypothesized proportion is 0.80.

Q: P(-1<Z<1)= round to four decimal places

A: Given that P(-1&lt;Z&lt;1)

Q: 34. A college offers tutoring in Math, English, and Chemistry. The number of students enrolled in…

A:

Q: P(-2<Z<2)=

A: P(-2&lt;Z&lt;2)= (four decimal places)

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

A: Given data isNo.of kinds of pizza toppings(n)=6No.of toppings could be ordered(r)=3

Q: The probability a component is acceptable is 0.8. Five components are picked at random. What is the…

A: Given,n=5p=0.8q=1-0.8=0.2A random variable X~Binomial(n=5  ,  p=0.8)P(X=x)=Cx50.8x0.25-x   ;…

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: 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? a. (E(X))² O a. O b.…

A: Given,E denotes the  expectation.

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: In how many ways can we select 6 people out of 12, ?of which a particular person is not included…

A: According to the given information, we have Total number of persons = 12

Q: Number of circular permutations of different things taken all at a time is (n-1)!. O a. True

A: Given statement :Number of circular permutations of different things taken all at a time is (n-1)!

Q: According to data, Metro Manila experiences major earthquake once every 4 months. What is the…

A: Farmula used P(E)+P(Ec)=1

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: On a multiple choice quiz, there are eight questions. Each question has four choices (A, B, C or D).…

A: GivenSample size(n)=8p=14=0.25                          (one correct choice in four…

Q: Primary and secondary routes connecting two computers need to be chosen. Two primary routes are…

A: The routes are primary and secondary.

Q: If X is a Binomial random variable with parameter (n, p), where 0< p <1, then as k goes from 0 ton,…

A: Given that,

Q: . An electronic assembly consists of two subsystems A and B. The following probabilities are known.…

A: Given: P(A fails)=0.25P(A and B fails)=0.14P(B fails alone)=0.15

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

A:

Q: Solve the following problem step by step please A newspaper does a survey of reading preferences…

A: 330=150(survey)+120(read electronic)+50(Physical)+10(do not read any format)

Q: It is known that 50% of adult workers have a high school diploma. If a random sample of 6 adult…

A:

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

A:

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: a. Determine the variance of 2

A:

Q: times at each screening station follow an exponential distribution and that arrivals follow a…

A:

Q: A sample mean, sample size, and population standard deviation are given. Use the one-mean z-test to…

A: From the provided information, Sample size (n) = 15 Sample mean (x̄) = 259 Population standard…

Q: e Determine the standard deviation of X f. Determine the standard deviation of Y 9. Determine the…

A:

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

A: Given,E denotes the expectation .

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

A: Given,Total no.of toppings=6

Q: A college is going to administer an assessment test to incoming freshman. Co be administered over…

A: Note : Both questions are different questions. As per answering guidelines I have to answer only one…

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 &lt; 400 200 400≤L&lt;600 230 600≤L&lt;800 931…

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

A: For a  standard normal distribution, Mean = 0 and standard deviation = 1

Q: if a class has 2 freshmen, 1 shphomore, 3 juniors, and 5 seniors, what is the probability that three…

A: From the provided information, A class has 2 freshman, 1 sophomore, 3 juniors and 5 seniors. Total…

Q: (a) Identify the claim and state Ho and Ha Ho: P = 11.7 H₂H # 11.7 (Type integers or decimals. Do…

A: HERE  GIVEN ,  An oceanographer claims that the mean dive duration of a North Atlantic right whale…

Q: If 4 Maths books are selected from 6 different Maths books and 3 English books are chosen from 5…

A: Solution  Given That,  If 4 Maths books are selected from 6 different Maths books and 3 English…

Q: If A is a perfect subset of B and P(a < Pb), then P(B - A) is equal to P(a)P (b) .a .b P(a) + P(b)…

A:

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

A:

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

A: Given that, Twelve books are placed on a shelf in random order. We have to find the probability of…

Q: Banach space and T E B(X) an operator with 1+ ||T||

A: To prove, id+T=1+T

Q: Six girls and five boys wish to join a ski trip. Four of them will be selected at random. What is…

A: Answer:-   Given 6 girls and 5 boys wish to join a ski trip                Total are = 6 + 5  = 11…

Q: choose a number from the set {1, 2, 3, ..., 100} uniformly at random and denote this number by X.…

A: Given: 1, 2, 3, .........100 are there in a set. A number X is selected from above set. Independent…

Q: 26. What is the interval notation for the following inequality? "x is greater than or equal to -3" O…

A: Correct notation for X≥-3