Assume the annual day care cost per child is normally distributed with a mean of $8000 and a standard deviation of $1400. What percent of day care costs are more than $7200 annually? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table, O % (Round to two decimal places as needed.)

Q: According to the Empirical Rule, the percentage of observations in a data set (providing that the…

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Q: If you know that the variance of a normal distribution is 50, then to the nearest whole number, what…

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Q: Given a normal distribution with μ = 100 and o= 10, complete parts (a) through (d). Click here to…

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

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 400 and a…

A: It is given that the mean is 400 and standard deviation is 50.

Q: In a normal distribution, approximately ___ percent of the distribution falls between three standard…

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Q: For any normal distribution, the mean, median, and mode will have the same value.

A: Our aim is to find the given statement is true of false

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 400 and a…

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Q: For any Normal Distribution, approximately . of the observations fall within three standard…

A: Normal distribution is given.

Q: In a Normal distribution 7% items are under 35 and 89% are under 63. Find its mean and standard…

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Q: The chickens at Colonel Thompson's Ranch have a mean weight of 1850 g with a standard deviation of…

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Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 400 and a…

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Q: No matter what the mean and standard deviation is for a normal distribution, if we take one standard…

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Q: The empirical rule relates the standard deviation of a population to the probability of where a data…

A: The given statement  rule relates the standard deviation of a population to the probability of where…

Q: Click here to view page 1 of the cumulative standardized normal distribution table. Click here to…

A: Let X be the random variable from Normal distribution with mean (μ) = 101, standard deviation (σ) =…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: Let X be the mathematics score in SAT exam. Therefore: X~Norm(μ=500, σ=100)

Q: For any normal distribution, about 68 % of the data lie within one standard deviation of the mean.…

A: The empirical rule, also referred to as the three-sigma rule or 68-95-99.7 rule, is a statistical…

Q: The finished inside diameter of a piston ring is normally distributed with a mean of 12 centimeters…

A: Let us consider, finished inside diameter of a piston is denoted by X with mean  of 12 and a…

Q: Assume that the speed of automobiles on an expressway during rush hour is normally distributed with…

A: It is known that a normal distribution is symmetrical about the mean

Q: The shape of the distribution of the time required to get an oil change at a 20-minute oil-change…

A: The shape of the distribution of the time required to get an oil change at a 20-minute oil-change…

Q: The heights of 500 students are normally distributed with a mean of 175.5 centimeters and a standard…

A: Givenmean(μ)=175.5standard deviation(σ)=6.5n=500

Q: Click here to view page 2 of the standard normal distribution table. student(s) (Round to the…

A: It is given that  Mean, μ = 117 Standard deviation, σ = 14 Sample size, n = 550 Z-Score, Z = ( X - μ…

Q: Use the standand normal distribution table to determine the percent of data between z= - 1.18 and z=…

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Q: Find mean deviation of the distribution given below :

A: Here Given frequency distribution of number of accidents

Q: Suppose male heights follow a normal distribution with μ = 178.4 cm and σ = 7.6 cm. What is the 99th…

A: It is given that the male heights follow normal distribution with mean 178.4 cm and standard…

Q: In a normal distribution, about what percent of the data lies within one, two, and three standard…

A: We have to determine the percentage between (mean - SD, mean + SD), (mean - 2SD, mean + 2SD) and…

Q: If the area to the left of æ in a normal distribution is 0.719, what is the area to the right of æ?…

A: We know that that is of the normal distribution is nothing but its probability value. For any…

Q: If a set of observations is normally distributed, what percent of these differ from the mean by (a)…

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Q: For a normal distribution with a mean of μ = 90 and a standard deviation of σ = 5, what is p(X>87)?…

A: We have given the following information about the normal distribution Mean = 90 Standard deviation…

Q: For a normal distribution, the mean is equal to the median. True False

A: The Normal distribution is Symmetric distribution. So,  Mean = Median = Mode.

Q: Which of the following tables is used in calculating the estimate assuming it follows a normal…

A: c. Z table   The standard normal distribution table provides the probability that a normally…

Q: Find the mean and the standard deviation of this normal distribution 20% 20 36

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Q: Use your normal distribution sketch above to determine below what weight should there be…

A: Here use normal table for probability  Here in part 2 graph represents the area in bottom is 0.1587

Q: Suppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(x 93)? O A.…

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Q: For a normal distribution where the mean is 50 and the standard deviation is 10, what percentage of…

A: The random variable X follows normal distribution with mean 50 and standard deviation 10. The…

Q: In a normal distribution, 31% of the items are under 45 and 8% are over 64. Find the mean and the…

A: Given Data: Let X represent the variable P(x<45)=0.31 P(x>64)=0.08   X~ Normal μ, σ2   To…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 400 and a…

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Q: On a normal distribution, at what percentage must a. The mean fall? b. The median fall? c. The…

A: Normal distribution, also known as the Gaussian distribution, is a probability distribution that is…

Q: Suppose a normal distribution has a mean of 50 and a standard deviation of 3. What is P(x≤ 47)? OA.…

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Q: What percentage of a population typically lands within two standard deviations of the mean under a…

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Q: Suppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(xs 93)? O A.…

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Q: Find the standard deviation (rounded to the nearest unit) for the data indicated.   Test Score…

A: Solution: x(1) Frequency (f)(2) f⋅x(3)=(2)×(1) f⋅x2=(f⋅x)×(x)(4)=(3)×(1) 50 3 150 7500 60 6…

Q: The annual per capita consumption fresh bananas (in pounds) in the United States can be…

A: Note: Thank you for the question. Since multiple questions are posted, according to our policy, we…

Q: If a normal distribution has a mean of 60 and a standard deviation of 5, complete the normal…

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Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 600 and a…

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Q: Use the standand normal distribution table to determine the percent of data between z= - 0.92 and z=…

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Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

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Q: The mean exam score for 45 male high school students is 23.5 and the population standard deviation…

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Q: Click here to view the standard normal distribution table (page 1). Click here to view the standard…

A: Mean = 17 sd = 2.5

Q: Use Table B to find the proportion of a Standard Normal distribution that is: below −1.42

A: From the provided information, The distribution is standard normal for which mean is 0 and standard…