Question 7 Thirteen students took a math test. The number of errors was 3, 7, 4, 0, 4, 1, 5, 4, 7, 3, 4, 5, and 7. What is the mode of this distribution?

Q: A sample data has a distribution that has a single mode and is strongly positively skewed. An…

A: It is given that the sample is Positively skewed.  In positively skewed distribution :  Mean of the…

Q: Suppose a population has three values 13, 17 and 24. What is its variance?

A: Given: n=3 The mean of the data is obtained as below: Mean=∑xn=13+17+243=543=18 The mean is 18.

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

A: Given data: 5500, 3700, 3200, 1200, 1000, 950.

Q: The average fruit fly will lay 406 eggs into rotting fruit. A biologist wants to see if the average…

A: Given: α=0.10

Q: What do you mean by Random Sample?

A:

Q: You are given the following data: (-7, -7, -6, -6, -4, -2, 4, 6, 9, 11, 12), and you wish to…

A: Data:X=−7,−7,−6,−6,−4,−2,4,6,9,11,12Number  Of bins = 5To find:Frequency of the second bin.

Q: r the data represented by the Stem and Leaf diagram shown below find The Mode  and The Median

A: The stem and leaf plot given is as follows

Q: A population has a mean of u = 30. If 3 points are added to each score, what is the mean for the new…

A: Given :  Mean(μ)=30 and N=3

Q: A researcher has collected the following sample data: 3, 5, 12, 3, 2. The mean of the sample is 5.…

A:

Q: . Defective DVDS From past experience, a company found that in cartons of DVDS, 90% contain no…

A:

Q: When the population is N=9 and the scores are 4,2,0,5,3,2,1,7,3 what is the SS, variance and…

A:

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

A: The net worth (in million dollars) for few celebrities are given as follows: Celebrity Net worth…

Q: Problem: The number of misdirected luggage cases reported for 5 consecutive weeks at the domestic…

A:

Q: Suppose that you make a large number of independent observations of a random variable and then…

A: large number of independent observations of a random variable are constructed as a table giving…

Q: Place the following set of n = 20 scores in a frequency distribution table. 6, 2, 2, 1, 3, 2, 4, 7,…

A: Arranging the data in ascending order:   1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 5, 6, 6, 6, 7, 7

Q: Suppose you have a distribution with a mean equal to 100, median equal to 75, and mode equal to 50.…

A: Given that  Mean =100 Median =75 And Mode=50

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.