Time spent on social media per day is normally distributed with a mean equal to 210 minutes and a standard deviation of 45 minutes based on the survey find the probability that the amount of time spent on social media by college did it is less than 220 minutes per day round answer to four decimal places

Q: What is the probability that a first grade classroom of 20 students who are chosen randomly from the…

A: Given Information: Mean μ=100 Standard deviation σ=15 Sample size n=20

Q: The length of human pregnancies from conception to birth approximates a normal distribution with a…

A: Let X be length of time marks the longest 2.16 % of all pregnancies from normal distribution with…

Q: Scores on the SAT are normally distributed with a mean of 500 and a standard deviation of 100. What…

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A:

Q: The average amount of time to finish this quiz is 26 minutes with a standard deviation of 1.2…

A: Consider the given information.

Q: Scores for a standardized test are normally distributed with a mean of 1200 and a standard…

A: given data μ = 1200σ = 60 normal distributionn = 64P(1200<x¯<1214) = ?

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A: Consider X be a random variable which follows normal variable indicates diastolic blood pressure. It…

Q: The mean value of the scores in a Statistics exam was 85 with a standard deviation of 4. Find an…

A:

Q: The weight of a type of dog follows Normal distribution with mean of 10 pounds and standard…

A: It is given that the mean and standard deviation are 10 and 2.

Q: A student took two national aptitude tests. The national mean and standard deviation were 625 and…

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Q: Suppose that the amount of time that students spend studying in the library in one sitting is…

A: (e)   Obtain the probability that their average time studying is between 45 and 50 minutes.   The…

Q: Heights in centimeters of girls at the start of 1st grade are normally distributed with a mean of…

A: From the given information,   Mean = 125 Standard deviation = 5   The objective is to find the…

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A:

Q: The distribution for the time a patient of a medical center spends waiting for an appointment is…

A: Define empirical rule first .  Empirical Rule :  The empirical rule, also referred to as the…

Q: Nationally the average score on the college entrance exams (Verbal test) is 453 with a standard…

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A: We have find givan probability..

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A:

Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15. What IQ do you need to…

A: IQ is normally distributed with a mean of 100 and a standard deviation of 15.

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A:

Q: Explain an important difference between the standard deviation and the mean.

A:

Q: The lengths of lizards aged 2 to 8 years from an island in the pacific are approximately normal with…

A:

Q: The length of human pregnancies from conception to birth approximates a normal distribution with a…

A: From the provided information, Mean (µ) = 268 Standard deviation (σ) = 17

Q: The standard error of the mean serves as a special type of standard deviation. Describe about it.

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Q: mandatory competency test for high school sophomores has a normal distribution with a mean of  425…

A: Given that.   X~N( μ , ?)   μ=425     , ?=83   Z-score =( x - μ )/?

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A:

Q: A particular fruit's weights are normally distributed, with a mean of 689 grams and a standard…

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A:

Q: A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what…

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A:

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Q: help please  A shareholders' group is lodging a protest against your company. The shareholders…

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Q: The number of gallons of paint that Home Depot sells in a given day is normally distributed with a…

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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.