Problem 15: The probability that the wife will be alive in 20 years is 0.8 and the probability that the husband will be alive in 20 years is 0.70. What is the probability that at least one of them will be alive in 20 years? A. 0.06 B. 0.45 C. 0.94 D. 0.56

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A: A research scientist reports that mice will live an average of 40 months when their diets are sharpl...

Q: Given P(X)= 5 and P(Y)=! Suppose a< P(XOY)<b. Find a and b.

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Q: A card is drawn from an ordinary deck. Match the following with their probab 10 2 3 10 10 10 A diamo...

A: Given that - n (s) = 52

Q: Suppose that 10% of the people in the world have at least 1% Neanderthal DNA. a. What is the probabi...

A: In the given problem, 10% of the people in the world have at least 1% Neanderthal DNA.

Q: umbrella and a shaving kit in that order

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A: We have given that the table represents records the frequency of the number of tries to get a heads ...

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A: Given information: Use the given data to determine the mean, count, sum and standard deviation using...

Q: die is rolled three times. What is the chance that---  none of the rolls show 2 or more spots?

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Q: 5. Five hundred children participated in a field demonstration. Their heights averaged 110 cm with s...

A: 5)GivenMean(μ)=110standard deviation(σ)=6

Q: There are 5 white and 3 black balls in the first jar and 4 white and 4 black balls in the second jar...

A:

Q: Example 2. Find the derivative of the following with respect to x. x +1 (iv) (i) x12 + 7, (ii) (x* +...

A: Solution is given:

Q: Which of the following data show most likely the largest possible variance or variability?

A: HERE FOR VARIATION THE MORE VALUE RANDOM VARIABLE TAKES THE LARGER THE VARIANCE          NOTE-AS PER...

Q: Suppose we have a continuous random variable over -2 <x<5. What is the mean of X? Round-off your ans...

A: Explanation:Here given the continuous random variable and find the mean  In this use the  uniform di...

Q: A high school baseball player has a 0.286 batting average. In one game, he gets 6 at bats probabilit...

A: Note: Please repost 2nd question as I can author only 1 question as per my policy Given data,p=0.286...

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Q: Find the chance that the highest number rolled is a four when a single die is rolled 7 times.

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Q: Mammography and clinical breast examination are the two major techniques used to screen for breast c...

A: Given that among women with breast cancer, 2% of all screening tests are false negatives. 

Q: 1. Let X and Y have the joint pmf given below. (x, y) | (1, 1) (1, 2) (1,3) p(x, y) | 2/15 4/15 (2, ...

A: The joint pmf of (X, Y) is given by  X \ Y  1 2 3 Total  1 215 415 15 915 2 115 115 415 615 ...

Q: 1. A six-face die which contains numbers of dots from 1 to 6 is rolled once. Find the probability of...

A: if a die is rolled than the possible outcomes areS=1,2,3,4,5,6

Q: Let X be a continuous uniform random variable on [a, b]: X ~ U[a, b]. a Write down the pdf and cdf o...

A: Given  X~U[a,b]  

Q: Question 6 On average there are 3 earthquakes each year in a certain geographic location. The distri...

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Q: For the discrete probability distribution. 3 4. 6. 7 k 2k 2k 3k 2k2 7k + k Find the variance.

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Q: What is the probability that the spinner will land on a circle

A: There are total 4 area in spinner   

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A: question:

Q: Two different teams named A and B are asked to separately design a new product within a month. From ...

A: just look at the Venn- Diagram............

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A: Given, 15 cars. 5 of these cars have defect A: first car is defective B: Second car is defective

Q: In a recent year, the total scores for a certain standardized test were normally distributed, with a...

A: The mean is 500 and the standard deviation is 10.6.

Q: There is a  standard deck of 52 cards, a hand of 7 is dealt. Please find How many hands are possibl...

A: Since the deck of cards consists of 52 cards we can say that the total possible outcome for each car...

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Q: What percent of the original price do you end up paying?

A: A store has clearance items that have been marked down by 60%. They are having a sale, advertising a...

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Q: 1. The probabilities that a market inspector will discover violations of the public health code in a...

A: As per our guidelines we are suppose to answer three sub parts. Required probability is P(X≥2)

Q: An urn contains 7 white and 3 red balls. Two balls are drawn together at random from the urn. Find t...

A: GivenAn urn contains No.of white balls = 7No.of red balls = 3Total no.of balls = 10

Q: 14. The formula for Chi Square (x) is: X = chi squared x² = E (0; – E;)² E; O; = observed value E = ...

A: Given that, put 270 corn kernels, 90 rice grains, 90 mongo seeds and 30 squash seeds into a containe...

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A: z be a standard normal curve.z~N(0,1)

Q: 1. You would like to estimate bacterial levels (specifically Escherichia coli) for a large shallow p...

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

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Q: The time until recharge for a battery in a laptop computer under common conditions is normally distr...

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Q: For the sample: 45 84 73 58 54 73 52 60 51 80. Determine the variance and round answer to 2 decimal ...

A: We have given that,  The data of the sample is,  45, 84, 73, 58, 54, 73, 52, 60, 51, 80 Then,  We wi...

Q: Determine the cumulative distribution function for the random variable X with the probability mass f...

A: The probability mass function gives the probability at each possible value of a discrete random vari...

Q: According to Masterfoods, the company that manufactures M&M's, 12% of peanut M&M's are brown, 15% ar...

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Q: TOPIC: Permutation / Combination There are 2 red Toyota, 3 black Honda and 4 white Mitsubishi cars ...

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Q: If X is a continuous random variable with distribution, f(x) =+k if0sxs3 0 elsewhere Determine P(1 s...

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Q: In a conference, 3 Thai, 4 Japanese, and 2 Filipinos found themselves grouped together in a workshop...

A: In the conference there are 4 different country's people which are given as : 3 Thai, 4 Japanese, 2 ...

Q: Four cards are drawn at random from a pack. Find the probability that they are a King, a Queen, a Ja...

A: Since we know that in standard pack of card there are 52 cards  And in standard deck of 52 cards the...

Q: Find (A u B) o B'.

A: Here use basic of venn diagram 

Q: Let X1 and X2 have the joint pdf f(x1,x2) = 8x1x2, 0 < x1 < x2 < 1, zero elsewhere. Find the joint, ...

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Q: Consider the transformation Y= 1/X, and the density function f(x) = 3*x² for 01 The density function...

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Q: Refer to the given table in answering numbers 18-19. In the experiment of tossing coin twice, the fo...

A: We have given that,  Let X be the random variable having probability mass function is,  X 0 1 2 ...

Q: Sketch the probability mass function of a binomial distribution with n = 10 and p = 0.01 and answer ...

A: Given that  Number of observation =10  Probability of success=0.01 We have to sktech the probability...