If on average 8 ships out of 12 arrive safely at ports obtain mean and standard deviation of number of ships returing safely out of 150 ships

Q: Why is the standard deviation preferable to the range as a measure of variation?

A: A range is the most common and easily understandable measure of dispersion. It is the difference…

Q: Female cougar weights are normally distributed with mean=102 pounds and standard deviation= 13…

A: Answer:-  Given that, μ=102, σ=13

Q: The time taken to boil a kettle is normally  distributed with a mean of 94 seconds and  a standard…

A: The provided information is  µ=94 σ=6 P(-a<X<a)=0.40…

Q: The weights of miniature horses are roughly normally distributed with a mean of 230 pounds and…

A: Given : The weights of miniature horses are roughly normally distributed with a mean of 230 pounds…

Q: A person must score in the upper 2% of the population on an IQ test to qualify for membership in…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: find mean and standard deviation   12,13,15,16,17,19,22,23,25,28,30

A: Given data is  12,13,15,16,17,19,22,23,25,28,30 From these data we have to calculate mean and…

Q: Runner’s World reports that the times of finishers in a 10 km run are normally distributed with a…

A: Let us denote X=The times of finishers X follows a normal distribution with mean=61 and standard…

Q: If the average wait time is 12 minutes with a standard deviation of 3 minutes, determine the…

A: Given : Average wait time =12 minutes Standard deviation =3 minutes We have to calculate percentage…

Q: Define "Standard Deviation" and also Find out the Standard Deviation of the given data: 86, 37, 21,…

A: Definition: Standard deviation is a measure of the amount of variation or dispersion of a set of…

Q: ticular fruits weight are normally distributed with a mean of 285 grams and a standard deviation of…

A: According to the sum, A particular fruit weight is normally distributed with a mean of 285 grams and…

Q: The drive distance (in yards) for professional golfers is normally distributed with a mean of 308.04…

A: The normal distribution: A continuous random variable X is said to follow normal distribution with…

Q: please explain how to use the standard deviation from the 1-Var Stats statistical output to obtain…

A: Hint:  Standard devation =Variance

Q: The mean gas mileage for cars driven by the students at Chillville High Schoo is 28.0 miles per…

A: Normal distribution is continuous distribution which has many real life applications. Standard…

Q: Test score for the Manila Science High school are normally distributed with a mean of 92 and…

A: Given: μ=92σ=13 The lowest possible score to qualify is obtained as below:…