Assume a member is selected at random from the population represented by the graph. Find the probability that the member selected at random is from the shaded region of the graph. Assume the variable x is normally distributed. Standardized Test Composite Scores 28

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Solution-: Let, X= The readings at freezing on a bundle of thermometers  Given: μ=00C,σ=10C ∴X→…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Draw the normal curve and shade the area between z=-0.432 and z=0.362.

Q: Assume that the random variable X is normally distributed, with mean p = 45 and standard deviation o…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 45 and…

Q: A bus comes by every 9 minutes. The times from when a person arives at the busstop until the bus…

A:

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A: Given information Number of voters(n) = 133 Eligible voters = 22% p = 0.22 Checking whether normal…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A:

Q: The waiting times between a subway departure schedule and the arrival of a passenger are uniformly…

A: We have Given that X: waiting time is uniformly distributed [0,8] Where a = 0  and b = 8 And,We…

Q: 2. Test scores on a standardized examination have an average mark of u = 70 with a standard…

A: Given : μ = 70σ = 5 Using the central limit theorem, if the sample size is greater than 30, we can…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Required probability is P(Z<-0.548)

Q: Assume that the Poisson distribution applies to the number of births at a particular hospital during…

A: Let X denote the  number of births at a particular hospital during a randomly selected day and it…

Q: A coin is tossed 400 times. Use the normal curve approximation to find the probability of obtaining…

A: Here probability of head = probability of tail = 0.5 n = 400 We have to find by normal approximation…

Q: Assume that the Poisson distribution applies to the number of births at a particular hospital during…

A: Solution: Let X be the number of births at a particular hospital. From the given information, X…

Q: A bus comes by every 14 minutes. The times from when a person arives at the busstop until the bus…

A: The distribution in this case:Here, the random variable X (times from when a person arrives at bus…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A: From the provided information, Sample size (n) = 172 22% of them voted that is p = 0.22 Using normal…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this​ case,…

A: Use the ‘conditions for normal approximation to the binomial distribution’ to determine whether X…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A: The parameters for the normal approximation can be calculated as:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: From the provided information, Mean (µ) = 0 Standard deviation (σ) = 1 X~N (0, 1) Here X be a random…

Q: Find the indicated probability. Let X be the number showing on a fair six-sided die. The…

A: Consider X be a random variable which follows normal distribution indicates the number showing on a…

Q: The waiting times between a subway departure schedule and the arrival of a passenger are uniformly…

A:

Q: 6. Assume that a randomly selected subject is given a bone density test. Those tes scores are…

A: Given data,μ=0σ=1P(z<2.06)=?

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: Use a normal approximation to find the probability of the indicated number of voters. In this​ case,…

A:

Q: Let X represent the full height of a certain species of tree. Assume that X has a normal probability…

A:

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A:

Q: Let X represent the full height of a certain species of tree. Assume that X has a normal probability…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: A bus comes by every 15 minutes. The times from when a person arives at the busstop until the bus…

A: Given: X~U(0,15) a=0 b=15

Q: A coin is tossed 420 times. Use the normal curve approximation to find the probability of obtaining…

A: We want to find the probability by using normal approximation

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: To find: P(−0.073<Z<0.457)

Q: A bus comes by every 13 minutes. The times from when a person arives at the busstop until the bus…

A: Given information: A bus comes by every 13 minutes. The times, taken by a person when he/she arrives…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A:

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A: From the provided information, Sample size (n) = 148 22% of them voted that is probability (p) =…

Q: The mean and standard deviation of height of an elf in Chrismas land are u = 161 cm ando = 40 cm,…

A:

Q: Compute PO) using the binomial probability formula. Then determine whether the normal distribution…

A: Obtain the probability that X equals 25.   The probability that X equals 25 is obtained below as…

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and a…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A: We have to find given probability.

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A: It is given that variable X represents the number of eligible voters who voted. X~B (123, 0.22).

Q: Assume that the birthweights of babies born into low socioeconomic status are normally distributed…

A: Given information: μ=116, σ=18n=100 The population distribution is normally distributed with μ=116…

Q: The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a…

A: Note: As per the guidelines, we are only allowed to solve three subparts, please post the other…

Q: Use a normal approximation to find the probability of the indicted numbers of voters. In this case,…

A: From the provided information, Sample size (n) = 110 A previous study showed that among eligible…

Q: Use a normal approximation to find the probability of the indicated number of voters. In this case,…

A:

Q: Suppose that 12 young people apply for 8 vacancies at a local restaurant. Because the applicants are…

A: Let X be the random variable that denotes the number of women filling the vacancies (out of the 12…

Q: Let the random variable X denote the length of time (in seconds) required to complete a certain…

A: For standard normal random variable, Mean (µ) = 216 seconds Standard deviation (σ) = 50 seconds X~N…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: By using standard normal distribution, we have Mean = 0 Standard deviation = 1

Q: During certain time periods at a​ hospital, patients arriving at the emergency room have waiting…

A: Here, the value for 0 and 7 repeated twice. Hence, consider During certain time periods at a​…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Given that the readings at freezing on a bundle of thermometers are normally distributed with, Mean…

Q: A bus comes by every 10 minutes. The times from when a person arives at the busstop until the bus…

A:

Q: Use a normal approximation to find the probability of the indicalted number of voters. In this case,…

A: We know that our variable follows Binomial probability distribution with n=136 and p = 0.22 Formula…

Q: se a normal approximation to find the probability of the indicated number of voters. In this​ case,…

A: It is given that n = 131 and p = 0.22.

Q: Assume that the probability of a being born with Genetic Condition B is p=11/60. A study looks at a…

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.