d the mean and standard deviation of the number of red-headed Scots in a randomly selected group of 155. The probability of having red hair is still for Scottish people. a. Mean = b. Standard deviation (Round to 2 places)=

Q: The lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation…

A: Given: μ=266σ=15

Q: 2. A student has the following quiz scores: 5, 8, 16, 17, 18, 20. Find the standard deviation for…

A: Given- A student has the following quiz scores: 5, 8, 16, 17, 18, 20. To find- Find the standard…

Q: The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation…

A: (a)   Obtain the probability that pregnancy will last 307 days or longer. The probability that…

Q: Find the mean, median, mode, range, variance, and standard deviation for the following data, which…

A:

Q: Multiplying every score is a sample by a constant value will change the value of the standard…

A: Standard deviation is a measure of the amount of dispersion of a set of values. It is obtained by…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A: The data on the number of adults in a group of five are given as…

Q: the following data set represents the number of new computer accounts registered during 5…

A:

Q: Fifteen students score the following on their math test. 46, 98, 24, 75, 83, 92, 68, 70, 88, 65,…

A: The following  fifteen students  score on their math test  is . 46, 98, 24, 75, 83, 92, 68, 70, 88,…

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A:

Q: The average price of a college math textbook is $168 and the standard deviation is $20. Suppose that…

A: The average price of a college math textbook is $168 and the standard deviation is $20. Suppose that…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A:

Q: A class of 30 62.171 students took a quiz worth 50 points. The standard deviation of the scores was…

A: Standard deviation of sample is given by

Q: Find the mean and standard deviation for the following:…

A: a)Mean: The Mean is 1.41

Q: The average daily points for my fantasy baseball team are {4.1, 5.7, 3.8, 4.7, 4.7, 5.5, 4.1, 2.7,…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated.

A: Population standard deviation, σ =3 inches Sample size n=6

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A: The given situation follows binomial distribution. The proportion of people born in United States…

Q: Find the probability that a sample of 18 has a sample mean below 32. The population mean is 24 and…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: Use the sample mean(78.5)and sample standard deviation (12.3671)in your calculations below. Use…

A: Given that:

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A: The highway mileage (mpg) for a sample of 8 different models of a car company is given as:19, 23,…

Q: he highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A: Ans#- The highway mileage (mpg) for a sample of 8 different models of a car company can be found…

Q: Suppose there are 5 students in a room. The mean age is 20.0 years, and the median age is 19. If the…

A: From the provided information, There are 5 students in a room. The mean age is 20.0 Years. The…

Q: Suppose, you play a game, and the result is simply "win" or "lose". For every 15 games played, you…

A:

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

Q: what is the probability that you will receive a grade that is between 89 and 97 on this exam?

A: The mean of grades for the latest statistics exam is 93 and SD is 4.

Q: highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find…

A: given data, sample size=8we have to find out the mean , median, mode and  standard deviation for the…

Q: Here are the foot lengths (in centimeters) for a random sample of 7 fourteen-year-olds from the…

A: Here, data is 25,22,20,25,24,24,28.

Q: 2. The number of hours spent playing video games a week by the residents of Minneapolis has a mean…

A: Answer -  Given mean μ = 10 hours   and Standard deviation σ = 13 hours                  Sample size…

Q: Find the standard deviation of the following set of scores. 10, 2, 38, 23, 38, 23, 21, 23

A: From given data, set of score: 10, 2, 38, 23, 38, 23, 21, 23 Count, N = 8 Sum, ∑x = 178

Q: The lengths of pregnancies are normally distributed with a mean of 270 days and a standard deviation…

A: We have given that.  Mean = 270 , Standard deviation = 15 , We need , Part (a): p(x greater than…