According to an almanac, 80% of adult smokers started smoking before turning 18 years old. (a) If 400 adult smokers are randomly selected, how many would we expect to have started smoking before turning 18 years old? (b) Would it be unusual to observe 360 smokers who started smoking before turning 18 years old in a random sample of 400 adult smokers? Why? adult smokers to have started smoking before turning 18 years old. (a) We would expect about (Type a whole number.)

Q: expand (a-b)7

A: The solution is given in the next step.

Q: 4root2*4root2

A:

Q: 6.3 3

A:

Q: 3/8+5/24

A: The given expression is 3/8 + 5/24.Simplify the given expression as follows.

Q: Expand (a −b)4

A:

Q: 12 16

A: We know that If a perpendicular is drawn from the vertex of right angle triangle of a right triangle…

Q: 57-24

A: Given that: 57-24

Q: 4.122

A: Given Information: a) Suppose each lot contains 10 items, you decide to sample 4 items per lot and…

Q: 6. Using the data from the contingency table, obtain the value of the test statistic of our test. 7.…

A: Step 1: Given: x1 = number of colored oranges from Skittles brand = 77 x2 = number of colored…

Q: The expected relative frequency of a particular outcome is?

A: The relative frequency is the ratio of the number of times a particular value of the data occurs to…

Q: What is the product of 3 and 3?

A: To find the product of given irrational numbers.

Q: 8(14-9)+5 32+6

A: The given expression is

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.