Which of the following statements is (always) correct? (A) If a linear system of equations has more unknowns than equations, then it must have infinitely many solutions (B) If A is an invertible lower triangular matrix, then A-1 is a lower triangular matrix (C) The jth row of AB can be computed by multiplying the jth column of A by B (D) If A, B and C are square matrices of the same size with AB = AC, then B = C (E) If the reduced row echelon form of A equals In, then the system Ar = 0 can have infinitely many solutions

Q: question 19

A: a)The two methods to test the difference in mean are: z-test t-test

Q: Do dominant and subordinate individuals differ in the means of giggle spectral CV?

A: For Group : Dominant Individual Standard Deviation, s: 0.05410 Count, N: 9 Sum, Σx: 2.755…

Q: EC an

A:

Q: 6) Find f'(-2) for each of the following functions.

A:

Q: Sec o

A: The solution is given in the next step.

Q: 16. The data in the accompanying table ecological study of the entire rainforest commu- bo nity at…

A: Given data for animal species having each diet breath; Diet Breath Frequency 1 21 2 8 3 9…

Q: 18 and 19

A: Question 18 : Consider the statement "If A∪C ⊂ B∪C, then  A ⊂ B " which of the following is a…

Q: Find aly if and of to

A: Differentiation

Q: B. F • A • D

A: The coordinates of a point are a pair of numbers that define its exact location on a two-dimensional…

Q: 13) De termine the surface area of the spiral ramp parametrized by = u cosQu) i + usin(2v)5 +vk with…

A:

Q: Coga 2.

A: we have to find, log7(6)÷log7(3)+log7(2)=?

Q: 3. Prove that the set of 3 by 3 matrices ba+b 0 b + c b W b a+c c forms a vector subspace of the…

A:

Q: fvalante (3+1)t

A: This is improper integral of first kind, limit is ♾️

Q: Parts A and B please

A: a) It is given that, a box has square base of side x and height h. The volume is 15 and surface area…

Q: a b er

A: Solution

Q: Question 54

A:

Q: Can you do d, e, and f?

A:

Q: 14 and 16

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: AND THIS sum !

A: Given : ∑N =1∞2NN+2

Q: Question 11

A:

Q: Table 1,4

A: Independent variables does not relies on other factors and stands alone. Some examples of…

Q: Does this

A: For given series, we have to find only limit of an.

Q: the series

A:

Q: Question 7 B

A:

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.