Find the standard deviation using 2 methods. And identify it is a grouped data or ungrouped data

Q: Find mean and standard deviation of 1500 males

A: Assume, x be the random variable representing the heights in inches. x be the mean value of x. s be…

Q: If the variance of the recorded weights of nine basketball players is 2.36, what is the value of the…

A:

Q: The drive distance (in yards) for professional golfers is normally distributed with a mean of 282.63…

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

Q: a history class has 75 members. if there is a 12% absentee rate per class meeting, find the mean and…

A:

Q: What is the standard deviation of a coin tossed 100 times resulting in 40 heads and 60 tails

A: The provided information is  n=100 The number of heads is 40 The number of  tails is 60 The formula…

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

A: 68-95-99.7-rule: Let X be an observation from a normal distribution, having mean µ and standard…

Q: According to a sports report, the time of finishers covering a certain distance is normally…

A: Solution: Let X be the time of finishers covering a certain distance. From the given information, X…

Q: . Calculate the standard deviation for

A: Here given grouped data for age and no. Of member

Q: The length of a fully grown hibiscus plant is normally distributed and has a mean of 35cm. It is…

A:

Q: The sample standard deviation is one measure that describes the value in the sample that the data…

A: A single number that seeks to represent a set of data by identifying the center position within that…

Q: rcentage of fake followers was 13.3 with a standard deviation of 2.

A: Given, sample size (n) =53sample mean (x̄) = 13.3sample standard deviation (s1) = 9.8 Confidence…

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: Create two data sets from 7 numbers each where: *Both data sets have the same standard deviation…

A: Below is the Example

Q: A population of Senior High School consits of number 1,2,3,4 and 5 .Compute the mean ,variance and…

A:

Q: The mean and standard deviation of a set of 100 observations were Worked out as 40 and 5…

A: We have given that Number of observations(n)=100  Corrected mean=40 Standard deviation=5  Mistaken…

Q: find the standard deviation

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: Here is a data set. 0,1,1,2,3,5,8,13 Use the table method and find the standard deviation.

A: Given numbers 0,1,1,2,3,5,8,13

Q: the ____ is based on only two scores in a distribution. -deviations  -variance -range -standard…

A: We know that, Deviations refers to the distance between the observations from their corresponding…

Q: Find the mean, standard deviation, skewness, kurtosis of the blood sugar

A: Given data is:

Q: Find the standard deviation for the number of girls in groups of 14 births when p = 0.5

A: Binomial probability distribution is a type of discrete probability distribution.

Q: Suppose the average golfer drives the ball around 259.1 yards with a standard deviation of 9.73.…

A: Solution

Q: a. Calculate the mean for each group b. Calculate the standard deviation for each group c. In your…

A: Let Xi denote the person without lucky charm and Yi denote the person with lucky charm. Thus, from…

Q: If the population standard deviation is unknown, which should be used in its place?

A: The population standard deviation is unknown.

Q: What are the best ways to find the standard deviation?

A: Standard deviation is a measure of variability. It describes how far the data falls from the…

Q: if the standard deviation of a sample is 0.5 find the variance

A:

Q: If the highest paid soccer platyer has his salary doubled, which of these will change? Can you…

A: We have to find correct options which will change.

Q: There is an average of 4 accidents in a week on a major highway in the city. What is the standard…

A:

Q: Find variance and standard deviation

A: From the given data we have the computations as, Class boundaries Xi Frequency (fi) fiXi…

Q: The measurements of a distribution with a higher ______ will be more spread out.a. meanb. variancec.…

A: Mean:   The arithmetic mean (also called the mean) is the most commonly used measure of central…

Q: In a recent survey, 80% of the community favored building a police substation in their neighborhood.…

A:

Q: A population with µ = 587 and σ = 12 is transformed into z-scores.  After the transformation, what…

A: It is given that a population with mean is 587 and the standard deviation 12.

Q: Square of the standard deviation is called

A:

Q: A maths class has 100 members. If there is a 15% absentee rate per class meeting , find the standard…

A:

Q: Compute the range and sample standard deviation of flight time.

A: We have to calculate the range and sample SD for the given data.

Q: Choose a random five single digit numbers and calculate the standard deviation. X {…. , ….. , ….. ,…

A: There are total 10 single digit numbers available, {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. Out of these 10…

Q: the standard deviation for the sample distribution of mean is called?

A: Given: To find = the standard deviation for the sample distribution of mean is called ?

Q: A school district requires all gradu 74 and the standard deviation wa

A: The normal distribution is one of the important continuous probability distribution that is used to…

Q: What is the standard deviation of the data {7, 1, 7, 10, 5, 3, 2}?

A:

Q: The manager of a certain TV station claimed that the average rating of people watching their…

A: We have given that  Hypothesized population mean = 60.5  sample size  =35 Standard deviation =13.5…

Q: Explain the standard deviation?

A: Standard deviation: Both the standard deviation and the variance are based on how much each…

Q: A history class has 75 members.  If there is a 12% absentee rate per class meeting , find the…

A: Given data  P(absent) = p = 0.12  So q= 1-p = 0.88 Sample size (n)= 75 X = no.  of student absent We…

Q: What is the standard deviation of a sample of 120 observations, if the variance of the sample 2.56?

A: It is given that the variance of the sample is 2.56.

Q: Suppose the standard deviation of a sample is 5.8. Find the variance. Do not round.

A: Given: sample standard deviation = 5.8

Q: Find the range and standard deviation of the set of data. 10, 8, 7, 13, 17 -

A:

Q: One researcher collected a sample of expenses for advertisement from 5 companies as follows: 50, 60,…

A:

Q: have a standard deviation of 2.40 and a variance of 5.78 is this considered high or low and will the…

A: If the standard deviation is near to 3 the curve is normal(Mesokurtic). If the standard deviation is…

Q: Compute the mean and standard deviation of the time spent for studying and current CGPA for male…

A: Standard deviation : The standard deviation is a summary measure of how far each observation…

Q: The standard deviation of a sample is 3.0 and the standard error is -16.52, what was the original…

A: