Blog

What is the sample standard deviation of the following numbers? 7, 6, 5, 4, 2 (Round to 2 decimal places)

A preschool class has 7 students. Their heights, in inches, are: 36, 36, 37, 37, 40, 45, 49Tell me about the data. In other words, provide the descriptive statistics for this data. HINT: Your answer should be 4 specific sentences.

What is the probability that a guest pays more than $80 for a ticket? (2 decimal places)

Use the following information to answer the next 3 questions.An automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that 10% of packages were underweight and 90% of them had satisfactory weight. HINT: construct a probability tree to answer the questionsWeightProbabilityUnderweight0.100Satisfactory0.900

The Sedgwick County Zoo has 7 elephants. Their ages are: 1, 6, 7, 7, 8, 20, 44 years. Tell me about the ages of the elephants at the Sedgwick County Zoo over the next 3 questions.

A population consists of all the weights of all defensive tackles on a university’s football team. They are Johnson, 204 pounds; Patrick, 215 pounds; Junior, 207 pounds; Kendron, 212 pounds;Nicko, 214 pounds; and Cochran, 208 pounds. What is the population standard deviation (in pounds)? (Round to the nearest whole number)

The cell labeled B can best be interpreted as

A random secretary is chosen. What is the probability that this secretary is male? (2 decimal places)

An example of a qualitative variable is

Use the following information to answer the next 6 questions.Century 2 sells different priced tickets for the same show, depending on where the seat is located. For one popular show, Front Orchestra tickets are $124, Rear Orchestra tickets are $89, Front Balcony tickets are $79, and Rear Balcony tickets are $55. The seating distribution is: 20% of the tickets are Front Orchestra, 38% of the tickets are Rear Orchestra, 25% of the tickets are Front Balcony, and 17% of the tickets are Rear Balcony. Rear Balcony tickets are $55 and there are 340 of them available.Front Balcony tickets are $79 and there are 500 of them available.Rear Orchestra tickets are $89 and there are 760 of them available.Front Orchestra tickers are $124 and there are 400 of them available.x     (ticket price)p(x)f(x)550.1779AB89124