Mean = %3D (Round to the nearest hundredth.) Standard deviation (Round to the nearest hundredth.)

Q: Calculate the standard deviation. Variance = 107.76. Mean = 34.2 (Round up to the second decimal…

A:

Q: A distribution of values is normal with a mean of 123.2 and a standard deviation of 62 Find P35,…

A: Given: A distribution of values is normal with  μ=123.2 , σ=62

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A:

Q: A distribution of values mean of 50 and standard deviation of 2. What is the interval of the middle…

A: To find the interval containing the middle 84% of the data, we can use the z-score corresponding to…

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

A:

Q: Describe about the mean absolute deviation.

A:

Q: How to calculate absolute value ? How to calculate standard deviation

A: An absolute measure of dispersion contains the same unit as the original data set. Absolute…

Q: Find the z-score for the value 69, when the mean is 96 snd the standard deviation is 5. z-score= ?

A:

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

A:

Q: Yoga mats have lengths with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: Given,mean(μ)=69.0standard deviation(σ)=2.8

Q: The standard error of the mean is the standard deviation of a theoretical sampling distribution. the…

A: We know that- Standard error of the mean is given by- SE=σn

Q: =9, median =13, standard deviation -5 Find the coefficient of skewness (round to two decimals)

A: Answer: From the given data, Mean (x¯) = 9 Median = 13 Standard deviation(s) = 5

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…

Q: How to find the standard deviation

A: Mean:Mean is a measure of center in case of quantitative data. Mean of a data set is the sum of the…

Q: how do you find the standard deviation when the score is 9 points above tthe mean?

A: = population standard deviation = the size of the population = each value from the population =…

Q: Standard deviation can only be used for variables measured at the interval level central level…

A: Standard deviation can only be used for variables measured at ? interval/ratio data

Q: Adding 10 points to every score in a distribution will not change the value of the standard…

A: To add 10 numbers to every score in a distribution will not change the value of the standard…

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: A variable is normally distributed with a mean of 100 and a standard deviation of 10. A student…

A: From the given information,   Mean = 100 Standard deviation = 10

Q: Explain the relevance of mean and standard deviation to someone who does not know what they are. .…

A: Mean: The mean is a measure of central tendency. It gives an indication of the average value of a…

Q: How does the curve change when the standard deviation is the same and the mean changes?

A: The mean is the center of symmetry of a curve or normal density curve.

Q: The mean always has a z-score (value) →

A: When the data is converted into z scores, the mean will always end up being zero.

Q: Change z-score (-2.00) into X value – Mean = 50, standard deviation = 10

A: Standard normal distribution: The standard normal distribution is a special case of the normal…

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.

Q: What would happen to the margin of error if the standard deviation were to decrease? it would…

A: We know that ,Margin of error=critical value ×standard deviation sample sizeMargin of error =Zα2 ×σn…

Q: Your height in inches is compared to the people in this class, and your deviation is -1.  What does…

A: Here we have given the question about mean of the heights. Given, Your height in inches is compared…

Q: A distribution of values is normal with a mean of 187.9 and a standard deviation of 71.2. Find P80,…

A:

Q: TRUE OR FALSE: the standard deviation describes the average deviation between the individual scores…

A: The standard deviation is a measure of dispersion. It measures the data on how much they have…

Q: ENG 342 fınal exam of last semester has a mean score of 78 and a standard deviation of 8. Sally's…

A: Given,mean(μ)=78standard deviation (σ)=8Z-Score=1.5

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: Z= x-μσ

Q: Cerebral blood flow (CBF) in the brains of healthy people is normally distributed with a mean of 74…

A: The question is about normal distributionGiven :Population mean CBF reading (  ) = 74Population…

Q: Mean =7, median =10, standard deviation =3 Find the coefficient of skewness (round to two decimals)

A: Answer: From the given data, mean = 7 median = 10  and standard deviation = 3