A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 10% margin of error at a 98% confidence level, what size of sample is needed? The political candidate will need to sample реople.

Q: b. N(0)

A: Given,  r→t=sint, t, cost                   ...1

Q: 5.1 #7

A: Given that                  A=60-1054-403-3502-425, λ=5

Q: a3-16a

A: a³−16a ⇒a(a²−16) ⇒a(a² −4²) ⇒a(a+4)(a−4)

Q: Question 26

A: We have given a graph which represent the derivative f' of some function f. we have to draw the…

Q: Find lim (x,y)→(12,3) xy cos(x – 4y). OS 1. –36 2. 36 3. 3 4. 0

A:

Q: 31/2 / 1/2

A:

Q: 1.6+0.4(x+6)+3.2

A: To simplify the expression means writing it in the simplest form.

Q: 619 d. 4 10

A:

Q: 人 2. 2. 4

A: The given integral is ∫x24-x2dx. Let x=2 sin u. Then dx=2 cosu du. Apply the substitution and…

Q: expand (x+y)6

A:

Q: 1. 12

A: We can use the concept of Pythagoras theorem to solve the given problem.

Q: 1/20+1/10+1/4

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.