The number of attempts at shooting goals made by a netballer in a tournament can be modelled by a binomial distribution with a probability of success equal to 0.35. (i) In a sample of 12 attempts at shooting goals, calculate the probability that EXACTLY 4 were successful.  (ii) Given that the netballer made a total of 120 attempts at shooting goals in a tournament, calculate the expected number of successful shoots.

Q: Table 4 is the probability table for a random variable X. Find E(X), Var(X), and the standard…

A:

Q: About 77​% of all female heart transplant patients will survive for at least 3 years. Eighty female…

A: The probability that the sample proportion surviving for at least 3 years will be less than 72​% is,

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A: From the provided information, Mean (µ) = 505 Standard deviation (σ) = 180 Let X be a random…

Q: Given a distribution with mean = 225 and standard deviation = 15, find the following probabilities:…

A: Let , X~N(μ=225 , σ=15)

Q: Does playing Mozart for unborn babies result in having children with higher IQs?   A psychologist…

A: The following information is provided: IQs are normally distributed. Sample size n=30 Sample…

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A:

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A:

Q: A marketing analyst wants to examine the relationship between sales (in $100s) and advertising (in…

A:

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A: From the given information,   Mean = 520 Standard deviation = 180 Sample size = 35   The objective…

Q: Assume thAt scores on a standardized test are known to follow a bell shaped distribution with a mean…

A: L

Q: For a class project, statistics students asked students in their class (30 students) how many hours…

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

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A:

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A:

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A: Mean=M=500, Standard deviation=170, Sample size=n=40

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A: Given: Mean μ = 500 Standard deviation σ = 170 Sample size n = 40 Sample mean X = 526 Formula used:…

Q: In each situation, find the value of the t-statistic for the sample mean x and give the value of…

A: (a) t = -1.25df = 24  (b) t = 1.25df = 24 Explanation:To calculate the t-statistic and degrees of…

Q: Time spent on a computer is gamma distributed with a = 4 and B = 7. I. What is the probability that…

A: Given that: The time spent on a computer is gamma distributed with α=4 and β=7

Q: Suppose that the final exam scores of all students in a large math class are normally  distributed…

A: The question is about normal distribution Mean scores of final exam ( μ ) = 130 points Std.…

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A: From the provided information, Mean (µ) = 500 Standard deviation (σ) = 170 X~N (500, 170) Here X be…

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A:

Q: About 68% of all U.S. public high school graduates in 2011 went on to attend college that fall. At…

A: Probability of U.S. public high school graduates in 2011 went on to attend that fall(p)+0.68sample…

Q: Find the probability that a single randomly selected salary is at least 163000 dollars. P(X >…

A: Given, n=53 μ=168000 σ=41000

Q: Suppose a batch of metal shafts produced in a manufacturing company have a variance of 6.25 and a…

A: Suppose the random variable x defines the diameter of metal shafts.

Q: In a large restaurant an average 70% customers ask for water with their meal. A random sample of 10…

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

Q: ading pr e probab r interme

A: The information provided in the question are as follows :- Population mean (μ)=500 Population…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Let X denote the annual salary for graduates 10 years after graduation and it follows normal…

Q: In a recent survey of high school students, it was found that the average amount of money spent on…

A: It is given that ,  in a recent survey of high school students, it was found that the average amount…

Q: (b) What is the probability that the sample mean is within 1 inch of the population mean for…

A: The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a…

Q: For a standardized psychology examination intended for psychology majors, the historical data snow…

A: As the sample size is higher than 30, the distribution can be assumed as normal (as per the central…

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A: Given that  Mean = 515  Standard deviation = 170 Sample size = 35

Q: he level of nitrogen oxides (NOX) and nonmethane organic gas (NMOG) in the exhaust over the useful…

A: Given Data: Mean (μ)=85 Standard deviation (σ)=6 Variance (σ2)=36 Sample size(n)=16   Let X be the…

Q: A nurse found that the lengths of babies in a hospital have a normal distribution with mean u and…

A:

Q: Suppose that the ages of all SCC students are normally distributed with mean 24.01 yrs and s.d. 5.31…

A: Given data, Mean μ=24.01sd     σ=5.31P(X>20)=?

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A:

Q: From the past experience, 60% of the stocks are profitable. What is the probability that 5of the 7…

A:

Q: About ​80% of all female heart transplant patients will survive for at least 3 years. Seventy female…

A: Given information Probability that female heart transplant patients will survive for at least 3…

Q: For the case of the thin copper wire, suppose that the number of flaws follows a Poisson…

A: The probability mass function of the Poisson distribution is given by

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A: μ = 505σ = 170n= 40P(x¯≥528) = ?      here n>30, as per CLT sampling distribution will be normal.…

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A: