Use a normal distribution to estimate the probability of more than 55 girls being born in 100 births. Assume that the probability of a girl being born in an individual birth is 50%.

Q: For a standard normal distribution, find the probability that a value is greater than 1.56 standard…

A: Let Z is a standard normal distribution.  So the standard deviation here is 1 and the mean is 0.…

Q: A surfboard factory just discovered a manufacturing error that causes some of the surfboards to…

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Q: Find the probability of getting 2 to 5 diamonds using normal distribution.

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Q: The mean of a standard normal probability distribution

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Q: Find the probability of a value in the standard normal distribution being greater than −0.35.

A: Draw the normal curve and shade the area to the right of z=-0.35.

Q: for a standard normal distribution,find: p(z>1.62)

A: Given that z is standard normal random variable:

Q: In the standard normal distribution, find the  z  value that corresponds to the  81st  percentile.

A: Given, find z for 81th percentile

Q: In the standard normal distribution, find the  z  value that corresponds to the  82.5th…

A: Answer:-  82.5th percentile means 0.825 area under the curve.

Q: The total area under the normal distribution curve is equal to 0.95 O True O False

A: The statement given is false.

Q: The factory workers in Brighton are prone to a disease called Pneumonia. In a recent survey in a…

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Q: Use a normal distribution to estimate the probability of more than 60 boys being born in 100 births.…

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Q: 44%  of students in a class have black hair. If 66 students are chosen at random, what is the…

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Q: Consider the probability that exactly 95 out of 160 computers will not crash in a day. Assume the…

A: Solution:It is given that the probability that a given computer will not crash in a day is 0.62 and…

Q: What are the requirements needed to be a binomial distribution?

A: To find: What are the requirements needed to be a binomial distribution?

Q: Use the normal approximation to estimate the probability of getting exactly 48 girls in 100 births.…

A: Given: The sample size of births is n=100. The probability of birth of a girl is p=0.5. For Binomial…

Q: For a normal distribution, identify the z-score location that would seperate the distribution into…

A: Given information a) 20% in the tail on the right-hand side means P (Z > z) = 0.20 P (Z < z) =…

Q: Find the probability that 120 randomly selected adult males have a mean weight greater than 200 lbs.

A: It is given that the mean of the adult males is 182.9, the standard deviation is 40.8 and the sample…

Q: The average time taken to run 10km, X, follows a normal distribution with μ = 60 minutes and σ = 15…

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Q: The average number of mice in a 5-acre rice field is estimated to be 80. Find the probability that a…

A: Given that  The average number of mice in a 5-acre rice field is estimated to be 80. Find the…

Q: Sketch the normal distributions with μ = 6, σ = 4

A: The mean is 6 and the standard deviation is 4.

Q: In the normal distribution below, μμ = 75, σσ = 50, and the shaded area equals 0.61. Determine the…

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Q: In a certain population, the length of the third metatarsal follows a normal distribution where μ=60…

A: Given: X~N60,100n=30μ0=85

Q: assume that the distribution is normally distributed. What is the probability the part is properly…

A: here given mean = 3 standard deviation = 0.08 Y = diameter of Pipe here use standard normal…

Q: Suppose that a random variable z has a standard normal distribution. Use a standard normal table…

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Q: For a standard normal distribution, find the probability that a value is greater than 2.3 standard…

A: The probability that a value is greater than 2.3 standard deviations below the mean and less than…

Q: For a standard normal distribution , find : P(z < - 1.85) Express the probability as a decimal…

A: Given, Z is standard normal distribution. To find:  P(z &lt; - 1.85)

Q: The normal PROBABILITY plot is supposed to show a straight line if your data have a normal…

A: Normal probability plot: It can be used to determine the small sets of data come from a normal…

Q: For a standard normal distribution, find: P(z > -0.87)

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Q: For a standard normal distribution, find: P(z < 2.68) Express the probability as a decimal rounded…

A: Using standard normal distribution we find the given probability.

Q: Find the Mean In a normal distribution, find μ when σ is 8 and 7.35% of the area lies to the left of…

A: Given,standard deviation(σ)=8

Q: For a standard normal distribution, find: P(-2.96 < z < 0.27) Express the probability as a decimal…

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Q: 2. The average number of mice in a 5-acre rice field is estimated to be 80. Find the probability…

A: Given,The average no.of mice in 5 acre field is 80so, the average no.of mice in 1 acrefield…

Q: time taken to complete an order on eBay follows a uniform distribution between 50 to 250 seconds.…

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Q: Calculate power using the normal distribution?

A: Power of a test: The probability that not occurring the type II error is called power of the test.…

Q: Determine a probability distribution for the random variable, X, the number of credit cards issued…

A: In this problem we have to find out the probability distribution of a random variable X.

Q: For a standard normal distribution, find: P(2.07 < z < 2.24)

A: Draw the normal curve and shade the area between z=2.07 and z=2.24.

Q: Assuming a Normal Distribution, find the probability of a product failing: - i) After less than…

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Q: Assume that X is a random number that follows Normal distribution with an average of 5 and variance…

A: a)    The normal probability is a type of continuous probability distribution that can take random…

Q: For a standard normal distribution, find the probability that a value is greater than 2.9 standard…

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Q: Determine the required value of the missing probability to make the distribution a discrete…

A: To find the value of P(4) we will use the fact that sum of probabilities of possible outcome is…

Q: For a standard normal distribution, find: P(-1.39 < z < -0.35)

A: P(-1.39 &lt; z &lt; -0.35)

Q: In Normal Distribution, The curve is not symmetric about the Mean Select one: O True O False

A: We have to find that the given statement is true or false.....

Q: For a normal distribution, find the z-score that cuts off the bottom 85.76% of all the z-scores.…

A: I have Provided this answer in Step-2.

Q: A.pl-0.8042< 6.80

A:

Q: For a standard normal distribution, find: P(z< -1.29) Express the probability as a decimal rounded…

A: Given For a standard normal distribution, find: P(z&lt; -1.29)

Q: Describe the procedures on how to use the normal probability distribution?

A: The normal probability distribution is basically used when there is a need to find the probability…

Q: A bartender calculates that every night she works, she has a 60% chance of earning more than $275 in…

A: Given: A bartender chances of earning more than $275 in tips is 60%, that is, p = 0.6. Number of…

Q: What is the correct expression of the integral of the probability function of a normal distribution…

A: The Normal Distribution : 1. The normal distribution is symmetric with scores more concentrated in…

Q: For a standard normal distribution, find: P(z < 2.74) Express the probability as a decimal rounded…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.