A set of laptop prices are normally distributed with a mean of $750 and a standard deviation of $60.
What percentage of the laptop prices are between $624 and $768?
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A set of laptop prices are normally distributed with a mean of $750 and a standard...
In a normally distributed data set with a mean of 22 and a standard deviation of 4.1, what percentage of the data would be between 17.9 and 26.1? a)95% based on the Empirical Rule b)99.7% based on the Empirical Rule c)68% based on the Empirical Rule d)68% based on the histogram
Question#: 13 Question: The mean weight for crates of apples are normally distributed with a mean weight of 34.6 pounds and a standard deviation of 2.8 pounds. Considering 75 crates of apples, what is the probability that the mean weight is between 31 and 35 pounds? Options: a) 0.8925 b)0.1075 c)0.4572 d)0.7843 Correct Answer: a Question#: 14 Question: The mean weight for crates of apples are normally distributed with a mean weight of 34.6 pounds and a standard deviation of...
24. The prices of new homes are distributed normally with mean $150,000 and standard deviation $1,700. What percentage of buyers paid more than $152,074? С a. 47.53% С с. 38.88% C b. 11.12% С d. 88.88%
The scores on a lab test are normally distributed with mean of 200. If the standard deviation is 20, find: a) The score that is 2 standard deviations below the mean b) The percentage of scores that fall between 180 and 240 c) The percentage of scores above 240 d) The percentage of scores between 200 and 260 e) The percentage of scores below 140
A set of data items is normally distributed with a mean of 70 and a standard deviation of 9. Convert 75 to a z-score. 275-0 (Do not round until the final answer. Then round to the nearest hundredth as needed.)
need help The average price of a laptop is $982. Assume laptop prices are approximately normally distributed with a standard deviation of $100. The most expensive 15% of laptops cost less than what amount?
iq scores are normally distributed with a mean of 100 and a standard deviation of 15. what percentage of people have between 60 and 85 or above 100. show work
A set of data values is normally distributed with a mean of 65 and standard deviation of five. Determine the Z-score of 78. a. -1.12 b. 2.6 c. 1.12 d. -2.6
all questions. Do not round
answers
1. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a. What percentage of scores is between 55 and i 15? b. In a group of 20,000 randomly selected individuals, how many have an IQ score of 130 or more? 2. A Honda Civic has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 33 mpg and a standard deviation of...
6.33 Let x be a continuous random variable that is normally distributed with a mean of 25 and a standard deviation of 6. Find the probability that x assumes a value a. between 28 and 34 b. between 20 and 35 6.34 Let x be a continuous random variable that has a normal distribution with a mean of 30 and a stan- dard deviation of 2. Find the probability that x assumes a value a. between 29 and 35 b....