The weight of frogs in grams in a marsh population are normally distributed with mean (u) equal to 23 grams and standard deviation (a) equal to 1.3 grams. How much would a frog need to weigh (in grams) to be in the 70th percentile for weight?

Q: The average birth weight of elephants is 220 pounds. Assume that the distribution of birth weights…

A: Solution-: Given: μ=220,σ=50 We want to find the birth weight of elephants at the 90th percentile.

Q: Measuring lung function: One of the measurements used to determine the health of a person's lungs is…

A: The hypothesized mean is 2.1.

Q: A normally distributed data set has a mean of 0 and a standard deviation of 2. What is the percent…

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Q: Assume that at the average age of a population of wild turtles is normally distributed with mean age…

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Q: A population of scores has mean 80. in this population, a score of X= 86 corresponds to z= +2. what…

A:

Q: Assume that weights of men are normally distributed with a mean of 160 pounds and a standard…

A: Given, Weights of men follows normal distribution with mean 160 pounds and standard deviation 25…

Q: A variable is normally distributed with mean 10 and standard deviation 3. Find the percentage of all…

A: Given  μ =10,σ=3 X~N(μ =10,σ2 =32)  We want to find the probability  P(73<X<80)= ?  Note: This…

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

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Q: According to data for a​ population, 3-year-old boys have a mean height of 38 inches and a standard…

A: given data normal distributionμ = 38 inchesσ = 2 inchesfor x = 42 inchespercentile = ?

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: A basketball player has a scoring average of 0.325 each week of the season, with a standard…

A: Given: μ=0.325σ=0.065

Q: A normally distributed data set has a mean of 0 and a standard deviation of 2. What is the percent…

A: Introduction: The fashionable regular distribution, additionally called the z-distribution, is a…

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the IQ…

A: Excel formula: =NORMINV(0.305,0,1)=-0.5100

Q: The weight of newborn babies is normally distributed, with a mean of 3.3 kilograms and a standard…

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Q: A normal population has mean u=56 and Standard deviation o=8. What is the 85th the population?…

A: We have given that  Mean, μ = 56 Standard deviation, σ = 8

Q: the data set has a size 50, how many observations lie within 2 standard deviations of the mean

A: From the provided information, Sample size (n) = 50 The observations lie within 2 standard…

Q: Birth weights at a local hospital have a Normal distribution, with a mean of 110110 oz and a…

A:

Q: the average grade is 84 with a standard deviation of 4. What is each grade for -1 2 0 1.5 -1.25

A: Given Mean μ=84Standard deviation σ=4 The formula for Z score isZ=X-μσX=Z×σ+μ

Q: The weight of newborn babies is normally distributed, with a mean of 3.7 kilograms and a standard…

A: GivenThe weight of new born babies are normally distributed.The mean =3.7 KgThe standard deviation…

Q: In a population of exam scores, a score of X = 88 corresponds to z = 2 and a score of X = 79…

A: From the provided information, A score of X = 88 corresponds to z = 2 A score of X = 79 corresponds…

Q: Human pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15…

A: The mean is 267 days and the standard deviation is 15 days.

Q: How high must a 2016 Vehicles gas mileage be to fall in the top 15% of all vehicles? normal mean is…

A: Given information: normal mean is 23.0mpg standard deviation is 4.9mpg

Q: The amount of time in years that an entry-level employee for a shipping company stays with the…

A: given data exponential distributionμ = 4.41λ = 14.41find 64th  percentile.

Q: Birth weight, in grams, of newborn babies are normally distributed with a mean of 3290 grams and a…

A: Mean=3290gmStandard deviation =520gm

Q: which in the picture is an estimator for the population mean µ?

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Q: A normal population has mean u 54 and standard deviation o = 7. What is the 84 th percentile of the…

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Q: et's assume that the height of adult women in the United States follow a normal distribution with…

A: given data, normal distributionμ=64.5σ=3.197.5th percentile for given data=?

Q: Assume that at the average age of a population of wild turtles is normally distributed with mean age…

A: In question,  Let X be random variable denoting the age of a population of wild turtles.  Given, X ~…

Q: Consider again the birth weights of newborn babies, where the mean weight is 3290 grams and the…

A: From the provided information,Mean (µ) = 3290Standard deviation (σ) = 520X~N (3290, 520)

Q: ind the percentage of area under a normal curve between the mean and the given number of standard…

A: The mean and standard deviation of the standard normal distribution are 0 and 1.

Q: In a population, the data value 180 has a z score of -0.8. The standard deviation of this population…

A: The question is about z score.Given :Raw value ( x ) = 180z score = -0.8Standard deviation of the…

Q: The weight of newborn babies is normally distributed, with a mean of 3.5 kilograms and a standard…

A:

Q: The heart rate of humans are normally distributed with a mean of 90.3 bpm and std. dev. of 7.3 bpm.…

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Q: The annual per capita consumption of oranges (in pounds) in the United States  can be approximated…

A: It is given that the mean and standard deviation are 19.2 and 4, respectively.