If someone owns an electric car it is represented by a one  and if they don’t it is represented by a zero. If someone  owns an electric car and their yearly salary in pounds for  four people are (0,80000), (0, 17000), (0, 37000) and (1,  58000) calculate the correlation coefficient.

Q: 1. A manufacturing plant consists of four machines, independently operating, to produce a certain…

A: The reliability or the probability of working of the four machines is as follows: Machine…

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

A: Here given there were six kinds of toppings that one could order for pizza  Here use counting…

Q: in how many ways can a hand of 5 cards be dealt such that 2 are black and 3 red cards?

A: here given ,  there are 52 cards in deck  there are 26 red and 26 black cards in decks

Q: Records indicate that, in Australia, 65% of secondary students participate in sport, and 71% of…

A: The following information has been given: Let A denotes the secondary students  who participate in…

Q: Cost of Pizzas A pizza shop owner wishes to find the 99% confidence interval of the true mean cost…

A:

Q: a. Two fair dice are rolled at once. Let X denote the difference in the number of dots that appear…

A: Given that, Two fair dice are rolled at once. X denotes the absolute difference in the number of…

Q: probability that the committee is made up of only students of the same sex?

A: In a class there are 10 girls and 8 boys, a committee is formed with a president, a secretary and a…

Q: 14.By examining the past driving records of city drivers, an insurance company has determined the…

A:

Q: For numbers 1-5. Refer to the table at the right. 1. In which class can you find the location of the…

A: As the question contains multiple sub parts. As per the company guidelines only Hence, first 3…

Q: 0. The average service rate is 14 people per hour. What is the average time required to serve a…

A: The average number of people arriving = 10 per hour The average number of people getting services =…

Q: Two "random" quarter-circles is generated as follows. First one randomly, uniformly choose a cutoff…

A:

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: How many favorable outcomes are expressed in the probability 7/9

A:

Q: 11. Manfred is considering job offers of the same type of sales position from two retailers with…

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

Q: (a) If the absolute measurement error within 0.5 millimeters is acceptable, what is the probability…

A: here given ,  A test instrument needs to be calibrated periodically to prevent measurement errors.…

Q: A nuclear power station is to be built on one of 20 possible sites. A team of engineers is…

A:

Q: 4. The effectiveness of a new drug was studied by 3 randomized experimental design (one-way ANOVA)…

A: The provided information is  The ANOVA is Source of Variation Sum of squares Degrees of Freedom…

Q: If 'X' is a continuous random variable, then the expected value is given by

A: here use property of Continuous Random variable

Q: A/ Solve the differential equation. (2x² + 3y²-7)x dx-(3x² + 2y²-8)y dy = 0

A:

Q: A group of employees of Ateneo De Manila University were asked if they own a credit card or not. The…

A: Probability distribution

Q: hat is the probability that their third daughter is their sixth child?

A: here given , a couple decides to have children until they have three daughters  Probability of male…

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

A:

Q: 3. [Maximum mark: 5] The times taken for a group of runners to complete a half-marathon are found to…

A:

Q: The following table gives the data for the average temperature and the snow accumulation in several…

A:

Q: Assume that in a certain company of Muscat the probability of a certain item being defective is…

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: 5. M = 3₁ 0² = 9₁ P/²6 < X < 12) a. Determine Plμ -ko < X < µ + ko ) 2 1 - 1 / / / k²

A: P(-6&lt;X&lt;12)=P(-6-33&lt;X-μσ&lt;12-33)=P(-3&lt;Z&lt;3)=P(-3&lt;Z&lt;0)+P(0&lt;Z&lt;3)=0.4987+0.4…

Q: Frank noticed that his mother will serve salad with dinner 78% of the nights, will serve potatoes…

A: given;Pr(Frank's mother will serve salad with dinner ) =78%=0.78Pr(Frank's mother will serve…

Q: Suppose that the weight of an newborn fawn is Uniformly distributed between 2.3 and 3 kg. Suppose…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: Three transistors are tested. The probability that none of them works is 0.97. What is the…

A: The probability that none of them works is 0.97.

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

A:

Q: A distribution of values is normal with a mean of 90 and a standard deviation of 5. Find the…

A: The provided information is  µ=90 σ=5 P(-a&lt;X&lt;a)=0.02…

Q: 4. (填空题, 2.0分) Give the sample space of rolling a six-sided die_

A:

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) How large should the sample be if the margin of error is to be less than $4? ANSWER: (b) If we…

A: here given , Population standard deviation  =  34$  Confidence level = 90%  MOE &lt; 4 $

Q: Car manufacturers produced a variety of classic cars that continue to increase in value. Suppose the…

A: Given Information: Consider the given dataset: Model Rating (x) Price (y) A 18 1600 B 17 450…

Q: Q5. An electronic assembly consists of two subsystems A and B. The following probabilities are…

A: Given that, an electronic assembly consists of two subsystems A and B. The following probabilities…

Q: Sam deals 5 cards to Samira. a) What is the probability that she has at least 4 diamonds in her ha…

A: Total number of playing cards = 52 Spade 13 Diamonds 13 Hearts 13 clubs 13   King 4…

Q: A student is given the following Venn diagram of foods we eat raw or cooked: C chicken fice spach…

A: A set is a collection of elements. Let A be a set of all vowels among the alphabets. Therefore, A=a,…

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

A: GivenNo.of people(n)=12No.of people to be selected(r)=6

Q: The water content of soil from a borrow site is normally distributed with a mean of μ = 14.2% and…

A:

Q: Two fair dice are thrown, what is the probability that the two scores do not add to 7? A 5/6 B 6/7 с…

A: The sample space for two fair dice is shown below: S={(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)…

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

A: To find: A continous random variable x has p.d.f , then ?

Q: Q3/ The probability that a consumer will rate a new antipollution device for cars What are the…

A:

Q: The weights of ice cream cartons are normally distributed with a mean weight of 7 ounces and a…

A: Standard normal distribution is a type of normal distribution expressed in z-score.

Q: A box contains 5 green pencils and 7 yellow pencils. Two pencils are chosen at random from the box…

A: The total number of pencils =5+7=12 Let event A: The first pencil chosen yellow.P(A)=C17C112=712Let…

Q: upvote.

A: Total number of students in the group = 10 Number of grade 11 students in the group = 3 Probability…

Q: 4. The number of kilograms of bananas sold by a certain fruit vendor over a year follows a Poisson…

A: The number of kilograms of bananas sold by a certain fruit vendor over a year follows a Poisson…

Q: A student is drawing one candy from a bag containing 14 Smarties, 8 Kit-Kats, and 4 Coffee Crisps…

A:

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