Assume that when adults with smartphones are randomly selected, 51% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that at least 3 of them use their smartphones in meetings or classes. The probability is (Round to four decimal places as needed.)

Q: Geometric Distribution Problem 4 Suppose that we roll a fair die until a 6 comes up. 1. What is the…

A: Roll a fair die = 6 comes up

Q: ФЫ В А ПРО В А П Р О Л ДЗАПРОЛДЖЭ ЯЧСМИТНЧСМИТЬБНСМИТЬБЮ SOLVE STEP BY STEP IN DIGITAL FORMAT A…

A: The formula of t test statistic, to compare the one sample mean with the population mean is derived…

Q: correlation coefficient close to zero is a strong indicator of a positive linear relationship…

A: Correlation is used to measure the relationship between two quantitative variables. The range of…

Q: The engine component of a spacecraft consists of two engines, A and B. The probability that engine A…

A: The engine component of a spacecraft consists of two engines A and B.Probability that engine A works…

Q: If you draw a card with a value of four or less from a standard deck of cards, I will pay you $7. If…

A: Total number of deck cards =52Total number of four or less cards =3*4 =12

Q: BritBox Streaming BritBox is a streaming service that "brings you the best of British telly, direct…

A: It is required to obtain the probability that a randomly selected customer watches exactly one genre…

Q: 165 is which percentile and 5.1 is which percentile?

A: Let X be a random variablex is the pth percentile if:p percent of observations lie below x (pth…

Q: a) What is P(ANB)? b) What is P(BA)? Suppose P(A/B)-0.2, P(B)-0.8, and P(A) - 0.64.

A: P(A|B) = 0.2P(B) = 0.8P(A) = 0.64

Q: (a) Use a Markov chain to model the probability of the student being on one of the pages of this…

A:

Q: Suppose you saw a sign at your local bank that​ said, ​"8.4​% rate compounded quarterly- 8.8 ​%…

A: Compound interest is obtained

Q: A study was conducted to determine whether there were significant differences between medical…

A: As per our guidelines we are suppose to answer only three sub parts kindly post the remaining  sub…

Q: The distribution of scores on the test written by a large group of students is skewed with the m of…

A: The distribution of scores on the written test is skewed with the mean of 80 points and standard…

Q: 4. Suppose that a family has three children, each of which is a boy or a girl, and we assume that…

A: Family has three children either boy or girl.Boy or girl are equally likely that is probability of…

Q: Problem 3 What is the conditional probability that exactly four heads appear when a fair coin is…

A: Exactly four  heads appear Coin is flipped 5 times

Q: A fair coin is tossed 5 times. What is the probability of getting exactly 3 heads?

A:

Q: It's known that 60 % of restaurant customers add sugar to the coffee and 50 % of restaurant…

A: 60% of the customers add sugar to the coffee, 50% add milk while 70% add at least one of the two…

Q: Using the following set of numbers, {2, 7, 8, 9, 0), and the fundamental counting principle,…

A: We can determine the number of different possibilities for each type of number described.2-digit…

Q: The t test for two independent samples - Two-tailed example “Bullying,” according to noted expert…

A: Hypothesis testing is a tool for making statistical inferences about the population data. It is an…

Q: on 2 Consider five-card hands. By convention, hands of cards are unordered. How many hands contain…

A: A set of cards consists of a total of 52 cards with four suits (Spades, Hearts, Diamonds, and…

Q: ntractor is required by a county planning department to submit one, two, three, four, or five forms…

A:

Q: A spinner has equally sized area that are colored blue, pink, or yellow. The experiment chart below…

A: The results after spinning the arrow ten times are shown below:Trial…

Q: Machine Learning is the science of learning from experience. Suppose Alice is repeatedly doing an…

A: Given the experiment of tossing n coins in m times.

Q: For the standard normal curve, find the z-score that corresponds to the third quartile. Click here…

A: Answer The Z-score that corresponds to the third Quartile is:Third Quartile = 75%…

Q: Consider the continuous function defined by y = -0.04 +0.204 on -4.9 ≤ x ≤ 5.1. -5 -T What is the…

A: y=-0.04x+0.204

Q: b. Show calculations for finding probability of event A and B, and state their values above…

A: According to the question,An unbalanced six sided die is rolled once.The probability of getting 5 is…

Q: JXY (x, y) 15y, Find fy (y). calculate the marginal density functions of the random vector.

A:

Q: A bag contains 10 red balls, 5 blue balls, and 3 green balls. A ball is drawn at random, and then…

A:

Q: An insurance company offers its policyholders a number of different premium payment options. For a…

A: Cdf is given for variable (x) : F(x)x0x<10.351≤x<30.453≤x<40.504≤x<60.896≤x<121x≤12

Q: An ice cream shop offers six flavours of ice cream. You may order a single, double or even triple…

A: An ice cream shop offers six flavours of ice cream

Q: 78% of U.S. adults think that political correctness is a problem in America today. You randomly…

A: Answer 78% of us adult think that political correctness is a problem in America today.You randomly…

Q: 4 We have a probability density plot for an event. We want to obtain the histogram plot with counts.…

A: From the graph, it seems that we are asked about count for the bin covering the range 8-12Reason:IF…

Q: Q3C. Indicate whether the statement is true or false. Use the inclusive OR. 5 is a whole number or…

A: the inclusive OR, if at least one of the statements is true, or  then the compound statement is…

Q: A company makes high-definition televisions and does not like to have defective pixels.…

A: (a) To test if the new method is significantly better than the old one at the α = 0.05 level, we can…

Q: 4.3 A survey of 500 adults found that 40% of them prefer coffee over tea. If a random sample of 20…

A: Let X be the number of adults who prefer coffee over tea. The probability of adults who prefer…

Q: The probability that a certain machine turns out a defective item is 0.05. Find theprobability that…

A: From the provided information,The probability that a certain machine turns out a defective item is…

Q: An article considered the use of a uniform distribution with A = 0.20 and B = 4.25 for the diameter…

A: Here, we have given information regarding the uniform distribution and the limits of this…

Q: If it is successful, the company will make $400,000. If it fails, the company will lose $250,000.…

A:

Q: A computer randomly generates 9 numbers from 1 to 38 at once. What is the probability that two…

A: To find the probability that two numbers among the nine randomly generated numbers are the same, we…

Q: Suppose that 3% of all adults suffer from diabetes and that 29% of all adults are obese. Suppose…

A: let  D: suffered from diabetesO:Obesegiven P(D) = 0.03 P(O)= 0.29 and P(D ∩ O) = 0.01As per…

Q: According to scientists, the cockroach has had 300 million years to develop a resistance to…

A: Solution:-Given thatSample size: n = 5,000Sample mean: x̄ = 13,857Standard deviation of the sample:…

Q: Using a technique referred to as the "Hi-Opt I System" in the casino game blackjack , a player can…

A: given mean =$1.65standard deviation =$48.93sample size n=8the earnings follows normally distributed…

Q: Isabella wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She…

A: The sample size is 43, mean is 72 and the population standard deviation is 14.9.

Q: Draw Venn diagrams for the following intersections. Universe={Men,Women,Adolecents, Boys,Girls}…

A: Universe={Men,Women,Adolecents, Boys,Girls}Events in the sample space:Regional music singing…

Q: A newsgroup is interested in constructing a 90% confidence interval for the proportion of all…

A: Answer Given Favorable cases [x] =426The sample size [n] =582

Q: The probability that the event will not happen is (Type an integer or a simplified fraction.)

A: It is given that The probability that an event will happen = 11/17

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. CPA Actuary + 30 40 50 60 70…

A: Find the minimum salary  of CPA using box plot.

Q: Find the z-values corresponding to the given measures of position, assuming that Z is a continuous…

A: We have to find z value corresponding to a. The range of values of the top 8% of the data.b. The…

Q: ang agency you of unleaded gasoline was $3.28. The following data show the price per gallon ($) for…

A: The average price for a gallon of unleaded gasoline was .Sample size

Q: The body temperatures of adults are normally distributed with a mean of 98.6° F and a standard…

A: Percentile:The percentile is the proportion of data lying below a certain value. For example, 56…

Q: Problem 07: In the weighted voting system below, the weights represent voters A, B, C, and so on, in…

A: In this set of problems, we encounter two distinct scenarios. Firstly, we delve into a weighted…