EXERCISE 30 A couple is planning on having three children. Assuming that each child is equally likely to be of either sex and that the sexes of the children are independent, find the probability that all three children will be girls.

Q: What is the optimal time for a scuba diver to be on the bottom of the ocean? That depends on the…

A: Given data: x 15.1 26.3 32.2 38.3 51.3 20.5 22.7 y 2.48 2.38 1.68 1.03 0.75 2.38 2.20

Q: Direction: Draw the tree diagram to answer the following question. Find the number of possible…

A: Given that A 5-peso coin and a 10-peso coin are thrown followed by a die.

Q: Question 2 LX has the following PDF: 120 fx (r) = otherwise Find the PDF fy (y) in the following…

A: Solution

Q: For which sample size (n) and sample proportion (p) can a normal curve be used to approximate the…

A: Given For which sample size (n) and sample proportion (p) can a normal curve be used to approximate…

Q: The scores of a large calculus class had an average of 70 out of 100, with a standard deviation of…

A:

Q: (i) What is the modal age group? (ii) How many people took part in the survey? (iii) Find an…

A: Given: A sample of people were asked how old they were when they first met their partner. A…

Q: Nicole has a six-sided number cube. Each side was labeled with one number, from 1 through 6. What is…

A:

Q: Two fair dice, one colored white and one colored red, are thrown. Find the probability that: a) The…

A:

Q: Question 24 Identify the study design best suited for the article: Transmission risk of a novel…

A: In question 24 we are required to determine the contagiousness of the novel coronavirus among a…

Q: +bx2 0 <x<1 The random variable X has the probability density function f (x) = {ax otherwise If E…

A:

Q: probability

A: Tree Diagram: It represents all the possible outcomes of an event in a tree format. It starts with a…

Q: 2. The following are the grade point averages of 30 students recently admitted to the graduate…

A:

Q: Jiven fhe fundion belor, solve fer the folewng 2x 3 3 O, elsewhere Vorify that ole.y) isr a joint…

A:

Q: Find the​ Z-scores that separate the middle 50​% of the distribution from the area in the tails of…

A: We have to find the Z-scores that separate the middle 50​% of the distribution from the area in the…

Q: Rhian likes to wear colored shirts. She has 15 shirts in the closet. Five of these are blue, four…

A:

Q: One box contains five white balls, three yellow balls and seven green balls. The experience random…

A: Given that a box contains five white balls, three yellow balls and seven green balls. Two balls are…

Q: what is the probability that the mean of the sample is greater than 110?

A: Let M denote the mean of sample of size n = 90. According to Central limit theorem, approximately M…

Q: Instructions: For every item given below, determine which kind of algebraic structure it is, and…

A:

Q: Suppose that p(r, y), the joint probability mass function of X and Y, is given by p(1, 1) = 0.5,…

A:

Q: Given that X is a random variable having a Poisson(2) distribution, compute the following: (a) P(X =…

A:

Q: An electrical appliance made by company A has an average life of 2500 hours, with a standard…

A: Given that  An electrical appliance made by company A has an average life of 2500 hours, with a…

Q: Q/ The average number of collisions occurring in a week during the summer months at a particular…

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

Q: test has rwo mulltiple choice questions, each with five choices. What is the probability of guessing…

A:

Q: (a) What is the probability that the card drawn is a nine? 0 (b) What is the probability that the…

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

Q: A spinner with 10 equally sized slices has 4 yellow slices, 3 red slices, and 3 blue slices. Nicole…

A: Given Total number of spins by experimental=40 Total number of spins by theorotical=10

Q: Question 4: Using Excel, conduct a NHST to determine whether there is a correlation in the…

A: Given Information: Independent variable X is Trump's share of popular vote Dependent variable Y is…

Q: response.

A: Whenever we go for hypothesis testing, we take care of a lot of components: 1. Null Hypothesis 2.…

Q: It says to write your answer as a simplified fraction

A: Probability is the measure that calculated the likelihood of event happening. It is calculated by…

Q: A bag contains 6 black marbles, 9 blue marbles, 4 yellow marbles, and 2 green marbles. A marble is…

A:

Q: Eight balls numbered 1 to 8 are placed in a bag. Some of the balls are grey and some are white. The…

A:

Q: The number of cars that pass through a toll booth on a given highway between 7 and 8 am is…

A:

Q: In a certain region of the country it is known from (last, experience that the: probability of…

A: Let A1: A person has cancer A2: A person does not have cancer hence, from the given information…

Q: SKETCHPAD Question 8 How many ways can the letters in the word HIGHLIGHT be arranged? Show all work…

A: Given word is ,"HIGHLIGHT"letter 'H' is repeated 3 timesletter 'G' is repeated 2 timesletter 'I' is…

Q: WFC Average 0.65% 10.26% StDev. Min -28.99% Max 27.51% 25. Based on the table above, what is the…

A: The average and standard deviation of a normal distribution is 0.65% and 10.26%. The probability of…

Q: A local store owner is interested in finding the mean age of her customers. She randomly surveys 82…

A: Key statistical concepts comprise of knowledge of population, sample, parameter, and statistic.

Q: QUESTION 9 If you draw one card from a standard deck, what is the probability of drawing a spade or…

A: As per Bartleby guideline expert have to answer first question only since I had done all for you.

Q: How many different ways can the word MINIMUM be arranged? (Write the equation including the…

A: Given :How many different ways can the word MINIMUM be arranged?

Q: Suppose that X is a normal random variable with mean 5. If P(X > 9) = 0.2 ,approximately what is…

A:

Q: An insurance agent sells the policies to 20 persons having same age and in good health. Based on the…

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

Q: Given that X is a random variable having a Poisson(2) distribution, compute the following: (a) P(X =…

A:

Q: Determine whether the events are independent or dependent. Then find the probability.  A computer…

A:

Q: Meghan has a jar containing 15 counters. ere are only blue counters, green counters and red counters…

A: Given Information: Meghan has a jar containing 15 counters. There are blue, green and red counters…

Q: A pizza parlor offers 12 different toppings for their pizza (the base pizza comes with only sauce,…

A: Given that

Q: Two sets of cards with a letter on each card as follows are placed into separate bags. Bag 1: I L J…

A: Solution

Q: 2.7 From past experience, it is known that, on the average, 10% of welds performed by a particular…

A: Given that n = 3,p=0.10

Q: Number of 4 14 2 times observed Which conclusion BEST supports the data? Outcome #3 is least likely…

A: 4.

Q: 5T 5. Kathy painted a picture and posted it on a social media site. The table shows t people who…

A: *Answer:

Q: Given the function below, solve for the following: ‚ −2 < y < 4 F(y) = 0, elsewhere a. Verify that…

A:

Q: spinner with 5 equally sized slices has 2 yellow slices, 2 red slices, and 1 blue slice. Raina spun…

A: Given Total number of spins=25