Exam 4: Describing Data: Displaying and Exploring Pata

A survey of 500 top Canadian companies reported what the companies' hiring outlook was for the Next 18 months as well as the general company outlook for the economy over the same period of Time. What is the probability that a randomly selected company from this sample does not have a Favourable outlook for the economy over the next 18 months?

(i. A company has warehouses in four regions: South, Midwest, Rocky Mountain and Far West. One Warehouse is to be selected at random to store a seldom-used item. The probability that the Warehouse selected would be the one in the Far West region is 1/4 or 0.25. (ii. One card from a standard 52-card deck of cards is to be selected at random. The probability that It will be the jack of hearts is 1/52 or 0.0192. (iii) An activity that is measured or observed is called a(n) experiment.

Three defective electric toothbrushes were accidentally shipped to a drugstore by the manufacturer Along with 17 non-defective ones. What is the probability that the first two electric toothbrushes sold Will be returned to the drugstore because they are defective?

(i. If there is absolutely no chance a person will purchase a new car this year, the probability Assigned to this event is zero. (ii. If the set of events are collectively exhaustive and mutually exclusive, the sum of the probabilities Equals 0. (iii) Suppose four heads did appear face up on the toss of a coin four times. The probability that a Head will appear face up in the next toss of the coin is 1/2 or 0.5.

Type of Attack Find the probability that when 1 of the 2000 subjects is randomly selected, the person chosen was Robbed or was victimized by an acquaintance or relative.

What does equal?

In a management trainee program, 80 percent of the trainees are female, 20 percent male. Ninety Percent of the females attended college, 78 percent of the males attended college. A management Trainee is selected at random. What is the probability that the person selected is a female who did NOT attend college?

The first card selected from a standard 52-card deck was a king. If it is returned to the deck, what is The probability that a king will be drawn on the second selection?

i. A probability is usually expressed as a decimal, such as 0.70 or 0.27, but it may be given as a Fraction, such as 7/10 or 27/100. ii. The closer a probability is to 0, the more likely that an event will happen. iii. The closer the probability is to 1.00, the more likely an event will not happen.

A survey of 500 top Canadian companies reported what the companies' hiring outlook was for the Next 18 months as well as the general company outlook for the economy over the same period of Time. Given that a randomly selected company has a favourable forecast, what is the probability that it Plans to cut jobs during the next 18 months?

A sales representative calls on four hospitals in York Region. It is immaterial what order he calls on Them. How many ways can he organize his calls?

Considering the chart below, what is the probability that if you select one person at random that They have committed a violent crime and were under 20 years of age?

Giorgio offers the person who purchases a 250 ml bottle of Allure two free gifts, either an umbrella, A 30 ml bottle of Midnight, a feminine shaving kit, a raincoat or a pair of rain boots. If you purchased Allure what is the probability you selected at random an umbrella and a shaving kit in that order?

(i. A particular result of an experiment is called a(n) outcome. (ii. When the occurrence of one event does not affect the occurrence of the other event, the two Events are independent. (iii) If the order of a set of objects is important, it is called permutation.

i. The complement rule states that the probability of an event not occurring is equal to one minus The probability of its occurrence. ii. If there are two independent events A and B, the probability that A and B will occur is found by Multiplying the two probabilities. Thus for two events A and B, the special rule of multiplication Shown symbolically is: P(A and B) = P(A) P(B). iii. The general rule of multiplication is used to find the joint probability that two events will occur. Symbolically, the joint probability P(A and B) is found by: P(A and B) = P(A) P(B/A).

The customer service department of H&R Block received a total of 235 telephone requests for a tip- Sheet on personal tax or corporate tax. The following table summarizes callers' primary area of Interest, and how they first heard about the tip-sheet. If one person is randomly selected, what is the likelihood that the caller first heard about the report From Television, given that the topic of interest is personal tax?

A tire manufacturer advertises, "the median life of our new all-season radial tire is 120,000 kms. An Immediate adjustment will be made on any tire that does not last 120,000 kms." You purchased four Of these tires. What is the probability that all four tires will wear out before traveling 120,000 kms?

A group of employees of Unique Services is to be surveyed with respect to a new pension plan. In- Depth interviews are to be conducted with each employee selected in the sample. The employees Are classified as follows. What is the probability that the first person selected is classified as a maintenance employee?

The following distribution table represents preferences for two types of cereals by 2,000 boys and Girls. What is the probability that an individual, whether a boy or girl, prefers nutty cereal?

(i. A company has warehouses in four regions: South, Midwest, Rocky Mountain and Far West. One Warehouse is to be selected at random to store a seldom-used item. The probability that the Warehouse selected would be the one in the Far West region is 0.20. (ii. One card from a standard 52-card deck of cards is to be selected at random. The probability that It will be the jack of hearts is 1/52 or 0.0192. (iii) An activity that is measured or observed is called a(n) experiment.