If one student is chosen from the school, what is the probability that the chosen student is a junior? Classes Number O Freshman 522 Sophomore 528 Junior 466 Senior 484 The probability that the chosen student is a junior is (Simplify your answer. Type an integer or a fraction.)

Q: Researchers at a reputable university and a reputable health organization claim that approximately…

A: Given that,p=74% =0.741-p=1- 0.74 = 0.26n = 85

Q: What is the range of all integers greater than 40 and less than 99 that are multiples of 3

A: To find : The range of all integers greater than 40 and less than 99 that are multiples of 3

Q: The lengths of time (in years) it took a random sample of 32 former smokers to quit smoking…

A: From the provided information, Sample size (n) = 32 Population standard deviation (σ) = 5.4 Level of…

Q: coupon payment is

A: Par Value of Bond is $1000 Coupon rate is 7.5% Yield is 5% Time to maturity is 5 years Bond is sold…

Q: A random sample of size 25 is taken from a normal population having a mean of 85 and a standard…

A: Solution-: Given: n1=25,μ1=85,σ1=2,n2=81,μ2=75,σ2=6 We want to find the sample mean computed from…

Q: Match each P-value with the graph that displays its area without performing any calculations.…

A: Solution Given That, Match each P-value with the graph that displays its area without performing any…

Q: A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed,…

A: Given The null and alternative hypothesis isH0:p≥0.3Ha:p<0.3

Q: The average number of field mice per acre in a 6-acre wheat field is estimated to be 11. (a) Find…

A: We have givenλ = 11X ~ Poisson (λ) => X ~ Poisson (11) Formula: P(X = x ) = e-λλx/x!

Q: Two bowls each contain 10 pieces of fruit. In bowl A there are five oranges and five apples; in bowl…

A: Given that Two bowls each contain 10 pieces of fruit. In bowl A there are five oranges and five…

Q: Let X be a continuous random variable with density function fx(x)= (a) Find P(X> 10). (b) Find the…

A: Solution Given

Q: A. Evaluate Fu,s (1,0): B. Calculate the share of people who have been to the Upside Down in the…

A: A)FU,S1,0=PU≤1,S≤0=f0,0+f1,0=0.32+0.03=0.35   B)   US 0 1 f(S) 0 0.32 0.03 0.35 1 0.15 0.50…

Q: Find the critical value to for the confidence level c = 0.99 and sample size n = 25. Click the icon…

A: Givenconfidence level(c)=0.90sample size(n)=25

Q: ist Coll n 7 Videos 2 W S Mat 170-772 Elementary Statistics - Summer 2022 (Starts 6/6) Homework:…

A:

Q: The probability that the mean height for the sample is greater than 65 inches is (Round to four…

A: It is given that  Mean, μ = 64.2 Sample size, n = 65 Standard deviation, σ = 2.55

Q: Find the probability for each of the following situations: 1. You get exactly 1 head when flipping…

A: Dear student according to the guidelines we solve only first question when different statement based…

Q: Use the given statement to represent a claim. Write its complement and state which is Ho and which…

A: Given ,Claim: P<0.69

Q: A car is driving at 30 kilometers per hour. How far, in meters, does it travel in 3 seconds? meters…

A:

Q: 1 Explain in the space below the reason why do we need to use P(X>29.5) for the probability of at…

A: Continuity correction factor table: If   P(X=n) use   P(n – 0.5 < X < n + 0.5)If   P(X > n)…

Q: About 52% of the residents of Capricorn municipality are happy and 48% of the residents are not…

A: Given data Event A:resident is happy with delivery service B:resident is not happy with delivery…

Q: Find the critical value(s) and rejection region(s) for the type of z-test with level of significance…

A: Given,two-tailed test ,  α=0.09α2=0.045

Q: The reaction time in seconds of a person can be modeled by a lognormal distributed with mean of-0.35…

A: Given that.   X~N( μ , ?^2 )   μ= -0.35     , ?=0.2   Z-score =( x - μ )/?

Q: According to a survey by a telecommunications company, the probability of a call not being connected…

A:

Q: In a certain city district, the need for money to buy drugs is stated as the reason for 71% of all…

A:

Q: Assume a member selected at random from the population represented by the graph. Find the…

A:

Q: Suppose that the continuous random variable X has a cumulative distribution function given by 0, if…

A: Solution Given That, Suppose that the continuous random variable X has cumulative distribution…

Q: Let the two dimensional discrete random variable (X,Y) have the following joint probability…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: Use the confidence interval to find the margin of error and the sample mean. (0.196,0.300) The…

A: Given confidence interval is (0.196 , 0.300)Upper limit = 0.300Lower limit =0.196

Q: B: Which of the following values cannot be probabilities of events and why? 4 4 0.87,-0.95,…

A: To find:  Which of the following values cannot be probabilities of events and why?

Q: According to a genetics theory, a certain cross of guinea pigs will result in red, black, and white…

A:

Q: Q1: If the event A is independent with itself, then P(A) is

A: According to the definition of independence the two events A and B are independent if PA∩B=P(A).P(B)

Q: estor plans to sell the bon coupon payment is receiv

A: Par Value of Bond is $1000 Coupon rate is 7.5% Yield is 5% Time to maturity is 5 years Bond is sold…

Q: Find the P-value for a left-tailed hypothesis test with a test statistic of z= -1.70. Decide whether…

A: Given,Test statistic(Z)=-1.70The test is left-tailed testand α=0.10

Q: Find the critical value(s) and rejection region(s) for the type of z-test with level of significance…

A: It is given that  The right-tailed z-test and α = 0.04

Q: . When a movie is released in a movie theater, it is this film-ad-this-film-ad that alternates all…

A: From the given information, it is clear that, the movie's play time is regarded as a uniform density…

Q: The IQs of 550 applicants to a certain college are approximately normally distributed with mean of…

A: Given Mean=115 Standard deviations=12

Q: Use the Multiplication Principle to find the total number of outcomes. 1. You are choosing a car.…

A: Given  8 choices for colours. 2 choices for air conditioning-with or without AC. 2 choices for…

Q: Suppose that P(A/B) = 0.4 and P(B) = 0.5. Determine the following: P(ANB) b. P(A'^\B) a.

A: GivenP(A|B)=0.4P(B)=0.5

Q: Use the confidence interval to find the margin of error and the sample mean. (0.196,0.300) The…

A: Given confidence interval is (0.196  , 0.300)Upper limit(UL)=0.300Lower limit(LL)=0.196

Q: text dianco cow yote na wewe ni mu 2) A poll at Ford College's branch campus found that about 800…

A: Hi there! Since there are multiple questions we will solve one question for you. To get remaining…

Q: A manufacturing company uses an acceptance scheme on items from a production line before they are…

A:

Q: A linear regression model has been estimated for the variables Y="monthly consumption of veal (kg)",…

A: The provided information is  Y=monthly consumption of veal (kg) X1=monthly monetary household income…

Q: when a single die is thrown, it has 6 outcomes since it has 6 faces. what is the sample space ?

A: Given,A single die is thrown once.

Q: The Z-score is. (Round to two decimal places as needed.)

A: It is given that  The shaded area of the graph is 0.4129.

Q: Let X and X, independence r.v. have same moment generating function (-) where tsa, let Y=aX+bX, ,…

A:

Q: The state test scores for 12 randomly selected high school seniors are shown on the right. Complete…

A: Given data is1420,700,724,622,1227,727,748,1445,980,833,540,943sample size(n)=12

Q: Barts football coach tells him he'll start next year if he gains 10 pounds in 14 weeks between…

A: Given  Weight needs to be gained=10 pounds in 14 weeks. Weight trainer promised =1 kg every 3 weeks.…

Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.98,…

A: Givenc=0.98standard deviation(σ)=6.5Margin of error(E)=2

Q: Find the margin of error for the given values of c, σ, and n. c=0.95, o = 2.2, n=81 Click the icon…

A: Given,c=0.95 , σ=2.2 , n=81Zc=Z0.95=1.96        (from Z-table)

Q: For a sample of n = 75, find the probability of a sample mean being greater than 222 if μ=221 and o=…

A:

Q: ndependent

A: First we will know what is independent event is  let A and B are two events. It is probability of…