QUESTION 3 For two events A and B, P(A)=D0.5 and P (B)=0.2. Then P (A or B) equals: (4 points) 0.10 if A and B are independent 0.70 if A and B are independent None of the above 0.60 if A andB are independent

Q: State the null and alternate hypothesis: For one experiment, 175 trials produced 88 successes. In a…

A: Given: n1=175x1=88n2=233x2=150 The significance level is taken as α=0.05.

Q: arch report states that t(18)=+3.09, p<. 05. For this test, r2 =. 33. True

A: Given: df = 18 test value (t) = 3.09

Q: Armando thinks that he has a special relationship with the number 1. In particular, Armando thinks…

A: We have given that Armando special relationship with the number 1. Here, we have three different…

Q: 5. The probability of John success. a. John will bat 4 b. What is the prol

A: Given, P(John hitting a home run), p = 0.20 No. of trials, n = 4  Let X be the number of times John…

Q: A grocery store manager wants to know if displaying cranberries near the entrance to the store…

A: P1 : Proportion of shoppers who buy Cranberries when they are near the store entrance. P2 :…

Q: Assume P (A) = .68, P (B) = .45, and P (AN B) = .25. Find P ( An I (An).

A:

Q: 4. Last week Sarah had exams in Math and in Spanish. On the Math exam, the mean was p = 40 with o =…

A:

Q: P(1)=.25 P(2) & P(3) =.2 P(4)=.05 P(5)= .1 P(6)= .2

A: Probability is a mathematical tool used to study randomness. It deals with the chance (the…

Q: If P(A) = 0.3 and P(B) = 0.6, what is P(A or B) if A and B are independent? 0.72 0.90 0.18 0

A: It is given that P(A) = 0.3 and P(B) =0.6.

Q: If P(B) = 0.3, P(A or B)= .06, and P(A and B)= .2, find P(A)

A: From the properties of probability, for any two events A and B we have

Q: Benford's Law claims that numbers chosen from very large data files tend to have "1" as the first…

A: Determine the level of significance.   Significance level:    In order to decide how small the…

Q: n1 = 55 and n2 = 65  p1 = .7 and p1 = .6.  Ho:(p1-p2)=0 against Ho:(p1-p2)>0 using a=.05

A:

Q: Q6. (Chapter 13) A professor wants to conduct a study in a statistics class to measure the effect of…

A: Regression Equation: When we want to predict the value of one variable, say Y, from the given value…

Q: Suppose that a students group on campus wants to estimate the average GPA of students at Mercy. They…

A:

Q: 1f. It has been reported that the first week in May NC has an average daily temperature of 88…

A: Average daily temperature of first week in May is 88 degrees. The first week had recorded…

Q: What percentage of scores is between a z of ‐2 and a z of +2? Why is this important?

A: Use Empirical rule to solve it

Q: If P(A) = 0.1, then (Ã) = 0.8 %3D True or False

A: let A is given any event then A¯ is complement event of A. given, P(A)=0.1

Q: CBS news reported that 4% of adult Americans have a food allergy consider selecting 10 adult…

A:

Q: A lot of people, 221 to be exact, came to the big neighbourhood cookout party, 4. (4 ana urought…

A:

Q: 6. If P(A) = 23, find P(Ā).

A: Given that. P(A)=0.23

Q: \ssume P (A) = .53, P (AN B) = .33, and P( A N B = .25. Find P (B)

A:

Q: Which statement is a valid conclusion from the following statement: On any given day, there is a 30%…

A: The valid conclusion from the given statements is that the probability of Rowena wearing jeans (J)…

Q: Q6b. (Chapter 13) A professor wants to conduct a study in a statistics class to measure the effect…

A: Introduction: The coefficient of determination or R2 value can be interpreted as the proportion or…

Q: Suppose P(A) = P(B) = 0.25 and P(AUB) = 0.45. What is P(ANB)?

A: The provided information is   P(A)=0.25 P(B)=0.25…

Q: The first test a doctor would order to determine whether a person is infected with HIV (the virus…

A: Note: As per our Honor code policy, we are authorized to answer only three sub parts at a time. So,…

Q: For two independent events A and B, P(A) = .4 an P(B) = .2. a. Find P(AB). b. Find P(A|B). c. Find…

A: From the provided information, P (A) = 0.4 and P (B) = 0.2 The events are independent.

Q: Type the probability that someone in this study is from the low income group or from the medium…

A: Define some events A : Someone is from the low income group. B : Someone is from the medium income…

Q: In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern plke over 20…

A: a) Denote p as the true proportion of guests who catch pike over 20 pounds.

Q: why the correct answer is letter C?

A: The objective of the question is to find the probability that more than 2 devices are defective in a…

Q: Decide if each of the following statements is True or False. If a sample of n = 10 scores is…

A: Solution: let x1,X2 ....X10 random samples of normal distribution (mean=mu, varience=sigma^2)…

Q: The values of P(Z≤−0.1) and P (Z≥0.1) are the same. Why?

A: We have given that  P(Z≤−0.1) and P (Z≥0.1)

Q: For two events A and B, P(A) = 0.55, P(B) = 0.40, and P(A & B) = 0.22. Find P(A|B). Express your…

A: Given that  P(A) = 0.55, P(B) = 0.40, and P(A &amp; B) = 0.22

Q: If P(A)-=0.7, P(B)=0.3, and P(A and B)=0.07, are A and B independent?

A: The probabilities are PA=0.7,PB=0.3, and PA and B=0.07. If the event A and B are said to be…

Q: If A and Bare events with P(A) 0.6, P(A OR B) 0.98, P(A AND B) 0.02, find F(B). Provide your answer…

A: Obtain the probability of P(B).   The probability of P(B) is obtained below as follows:   The value…