An organization has 15 members, 5 of whom are analysts, 3 of whom are chemists and the rest are sales people. In how many ways can a committee of 4 members can be selected if there should be at least one chemist or at least two sales people?

Q: 3 males and 3 females are sitting in two parallel rows containing three people each. Find the…

A: The probability of an event is the ratio of the number of cases favorable to that event to the…

Q: A chalk box contains 5 pink chalks and 4 white chalks. If three items are picked at random, assuming…

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Q: Show E(XY)

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Q: expected profit of 1 percent of the amount it would have to pay out upon death. Find the annual…

A: here take C = premium expected profit  = 1% of 200000 = php 2000 p(die during the year ) = 0.02 x=…

Q: Show V(X)

A: The joint probability mass function of X and Y is  f(x,y)=(x+y)/21   , x=1,2,3 and y=1,2

Q: 25. A pair of dice is rolled. What is the probability of getting a. a total of 6 or 8? b. a total of…

A: Given that,  a pair of dice is rolled. We need to find the probability of getting: a. a total of 6…

Q: Two cards are drawn from a deck of 52 cards. The first card is replaced before drawing the second…

A: no.of black cards=26no.of Ace cards=4Total no.of cards=52

Q: In Mendel’s genetic experiments many characteristics of the plants were quantified, such as their…

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Q: Random variables X and Y have the joint PMF with a constant k (kxy, х %3D 1,4; у %3D 1,3 P(x,y) =…

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Q: It is commonly believed that the mean body temperature of a healthy adult is 98.6° F. You are not…

A: As per our guidelines we are supposed to answer only 3 subpart of any questions so i am solving…

Q: Problem 3. A lottery gives you an award if you are able to choose correctly at least 5 numbers out…

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Q: a) A random variable is continuous. For any value a, P(X =a)~0 always. b) A standard normal curve…

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Q: Given that P(S) = 0.3, P(S|Q) = 0.4, and P(Q) = 0.5, find the following probabilities: a. P(SnQ) b.…

A: Given. P(S)=0.3, P(S|Q)=0.4, P(Q)=0.5

Q: A teacher categorized students by whether they regularly completed their homework (or not) and…

A: Given: A teacher categorized by whether they regularly completed their homework (or not) and whether…

Q: . In a binomial distribution with p=0.02 and n=70, what is the actual probability of three success?…

A: p =   = 0.021- p = 1 - 0.02 = 0.98n= 70 X ~Binomial(n, p) X follows the Binomial (70 ,0.02)The PMF…

Q: It refers to the amount. of disease already present in a population A. Proportion B. Prevalence C.…

A: Study of health and disease in a population is known as epidemiology. Prevalence is the epidemic…

Q: 1. When analyzing the accuracy of a machine classifier for cancer tissues, 16 of the 500 random…

A: Given that  X=16 , n=500

Q: Write the Sample space, outcome or event of the ff: 4. Arranging the possible children of a couple…

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Q: If x-Exp(5), then M,(t) is O 1 suall (1 – 5t)-1 الخيار 2 (1 -

A: Given that  X~Exp(5) Find  Mx(t)

Q: Assuming a constant failure rate of 0.012 with an exponential probability distribution, if only a…

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Q: 12. During a laboratory experiment, the average number of radioactive particles passing through a…

A: Let X be the particles passing through a counter from Poisson distribution with average (λ) = 4…

Q: Activity: Which events are independent? Determine whether the events are independent or dependent.…

A: Dependent events : The events which influence the probability of other events  Independent events :…

Q: If a random student has studied German before, what is the probability they have also studied French…

A: We have given that the beginning of the school year a class of students are asked what foreign…

Q: (iii) takes Economics or a female. (c) Two students are chosen at random, find the probability that…

A: In a college, there are 150 students taking courses in Mathematics, Physics and Economics. Among…

Q: Current Year Previous Year Occupied Rooms 1,505 1,411 Total Rooms 1,750 1,700

A: Solution:- from given information x1= 1505     ,n1=1750 x2= 1411     ,n2=1700 null hypothesis…

Q: A certain type of radio tubes lasts on the average of 3 years with a standard deviation of 2.9…

A: Solution: Given information: n= 40 Sample size  μ= 3 Population mean σ= 2.9 Population standard…

Q: 1. In how many ways can 8 members of Board of Directors be chosen from 5 juniors and 7 seniors if…

A: Let us suppose there are three marbles viz. a red, a green and a blue. From these, there are three…

Q: 2. Suppose a jar has only four coloured jelly beans: Blue, Purple, Red, and Yellow, in the ratio…

A: Probability is the chance or likelihood of event happening. It is calculated by dividing the…

Q: 4, and 6 if no digit is repeated in any number? a. b. repetitions are allowed?

A: We have to find how many two-digit numbers can be formed from the digital 2, 4 and 6 using the…

Q: a) What is the probability that a drug meets specifications or is produced in factor A? b) Given…

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Q: 1. What is the probability that no beds while be occupied at the north hospital while the south…

A: Here AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPARTS    Here gives joint distribution table of X…

Q: A certain type of storage battery last on average, 3.0 years with a standard deviation of 0.5 year.…

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Q: a little league manager has 12 children on her team. How many ways can she form a 9- player batting…

A: Given that  Total player=12 Batting order player=9 Find the number of ways can she form a 9 player…

Q: is Pira ch exercise and find your answer in the Code Key. Write the Te A. Find each probability if…

A: Note: According to Bartleby guidelines expert solve only one question and maximum 3 subpart of the…

Q: Find the area under the normal curve in each of the following cases. Sketch and label each curve. 1.…

A: Given that  We Find the area under the normal curve in each of the following cases. Sketch and label…

Q: A bag contains 4 black counters and n white counters. Two counters are taken from the bag at random…

A: Given that  Total counters=4+n Black counters=4 White counters =n 2 counters are taken from the bag…

Q: Give the value of the following: 1. C(4,4) 3. C (29,29) 5. С (10,1) 7. с (5,4) А. 10.…

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Q: A company employs 3 people for 3 positions: marketing staff, manager assistant, sales manager There…

A: If there are n mutually exclusive, exhaustive and equally likely outcomes of a random experiment and…

Q: An agronomist is interested in comparing the efficacy of two fumigants (A and B) and a control (O)…

A: In agricultural experimentation, the layout of R.B.D can be illustrated as follows:

Q: You wish to test the following claim (H.) at a significance level of a = 0.02. H.:µ = 73.5 Ha:µ +…

A: Given,n=61M=76standard deviation(s)=18.1α=0.02 H0:μ=73.5Ha:μ≠73.5

Q: Number of women in Makati City who died from lung cancer in 2004 estimated revenue (in peso) in…

A: We have given that the statement about to the proportion.

Q: The ---------- of disease represents the rate of occurrence of new cases arising in each period in a…

A: Epidemiology is used to determine the disease in the population and the health status of the…

Q: The extract of a plant native to Taiwan has been tested as a possible treatment for Leukemia. One of…

A: Given that  X~Normal(μ = 65 , ? = 9.9)

Q: a) Determine the cumulative distribution function of photoresist thickness. b) Determine the…

A: The thickness of photoresist applied to wafers in semiconductor manufacturing at a…

Q: A single digit between 0 and 9 is randomly chosen, and a single letter from A to Z is randomly…

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Q: What is the probability of winning the award?

A: here given lottery gives you an award if you are able to choose correctly at least 5 numbers out of…

Q: A box has 7 blue marbles and 9 yellow marbles.  Pick 2 marbles randomly from the box. Let X be the…

A: Introduction:  Hypergeometric Distribution: Hypergeometric is the distribution of discrete random…

Q: Assume that 15% of the people in your expedition trip own a mobile phone, and you are randomly…

A: Given that n=2,p=0.15

Q: Two cards are drawn at random from a deck of 52 cards without replacing the first card before…

A: We know that There are 52 card in the deck in which they divided into two color i.e red(26) and…

Q: Cost of Pizzas A pizza shop owner wishes to find the 95% confidence interval of the true mean cost…

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