Find the variance of the probability distribution for the histogram shown.

Q: The effects of a weight loss drug are standard normally distributed where negative data values…

A:

Q: Where are most of the data gathered in a negatively skewed distribution? Which value is larger, the…

A:

Q: Micheal invested $2000 in a certain stock. At the end of the year the stock could be worth $1600,…

A: Given: Micheal invested $2000 in a certain stock. At the end of the year the stock could be worth…

Q: Find the z-score boundaries that divide a normal distribution. The middle 25% from the 75% in the…

A: Solution: From the given information, 25% area lies in the middle of the normal distribution and 75%…

Q: According to the Department of Education, 60% of college students enjoy taking Statistics. Suppose…

A: Let  X be the number of students who enjoy taking Statistics in a sample of 200. Given n = 200…

Q: In a normal distribution, what does the variance measure?

A: The normal distribution is a symmetric distribution that has a bell-shaped curve.

Q: A recruiter at Salisbury University is interested in comparing the percentages of high school…

A: Box and whisker plot is the graphical representation of the data, which includes, minimum value,…

Q: Explain the the Chi-Squared Distribution?

A:

Q: 1 2 13 r= 4 5 9 3 8 6 5 Calculate the sample correlation coefficient (r) to three decimal places.…

A:

Q: What is an everyday example of variance within samples?

A: If we need to know the variance within samples, we need to use ANOVA Test.

Q: Here are 6 celebrities with some of the highest net worths​ (in millions of​ dollars) in a recent​…

A: The number of observations is n = 6.

Q: Anyone who has been outdoors on a summer evening has probably heard crickets. Did you know that it…

A: The regression analysis is conducted using EXCEL. The software procedure is given below:…

Q: For a fair six-sided die, calculate the mean and variance of the distribution of outcomes. What is…

A: Tossing a six sided die is.The sample space S={1,2,3,4,5,6}

Q: Twelve percent of U.S. employees who are late for work blame oversleeping. You randomly select four…

A:

Q: You have a dataset with a mean of 2, median of 3 and variance of 9.  What is the skewness?

A: Given that  Mean = 2 , Median = 3 , Variance = 9

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: The summary data from study demonstrates a stronger relationship between how many minutes per day a…

A: Given : A standard deviation is a measure of how dispersed the data is in relation to the mean. Low…

Q: What does a distribution represent?

A: A distribution nothing but function that represent the possible values for a variable and how often…

Q: patient. The mean difference is calculated Md= -4 with SS= 16.  a. Using symbols, state the…

A: )

Q: Adam thinks the five people who sit next to him in class spend the same amount of money on their…

A: For the given data Find Use three decimal places in the table   DF SS MS F Groups…

Q: The mean diameter is 84 millimeters and the variance is 16. Find the probability that the diameter…

A: We have to find he probability that the diameter of a selected bearing is greater than 90…

Q: Identify the​ t-statistic and P-value.

A: The sample size n is 23.

Q: Give the mean and the standard deviation of the distribution of means for mean=100; Variance=100;…

A:

Q: Explain why it makes sense that the SEE equals the standard deviation of Y when the correlation…

A:

Q: makes a distribution a normal distribution?

A: Properties of normal distribution  a) The mean , median and mode of a distribution is same it is…

Q: The amount of time people spend at the gym follows a uniform distribution from 45 to 90 minutes.…

A: From the provided information, The amount of time people spend at the gym is uniformly distributed…

Q: The state Government gives grants to low-income undergraduate students. According to the National…

A: The given hypotheses are as follows: H0: µ = 2,600. Ha: µ ≠ 2,600. The sample size is 50 students,…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.