If one event can occur in m ways, and a second event can occur in n ways, how can we find the number of ways the events can occur in a sequence?
What is m x n
100
What word should you identify with discrete data?
What is countable, finite, objects
100
The area under a normal curve is?
One
100
When creating a confidence interval, we use t-distribution when....
What is n<30
200
Identify as a population or sample: The height of every student at TCA
What is a population?
200
While getting ready in the morning, you have to choose from 3 shirts, 2 pairs of paints, and 3 pairs of shoes. How many ways can you get dressed for school?
What is 18
200
Identify as discrete or continuous data: The average weight loss for people who enroll in Weight Watchers.
What is continuous
200
Find the area under a curve to the left of z = -0.99
What is 0.1611
200
What is the critical z-score for an 80 percent confidence interval?
What is 1.28
300
How do you find class width when constructing a frequency table?
The range divided by the number of desired classes
300
A coin is tossed and a dies is rolled. Find the probability of getting a tail and then rolling a 2
What is 0.083
300
A surgical technique is performed on seven patients. You are told there is a 70% chance of success. Find the probability that exactly five patients have a successful surgery.
What is 0.318
300
Find the area under a curve that is to the right of z = 1.06
What is 0.1446
300
find the margin of error given c = 0.90, s = 2.5, and n = 36
What is E = 0.685
400
Identify the five point summary of the data set (Q1, Q2, Q3, max and min.
14, 14, 16, 13, 12, 9, 10, 11, 17, 19, 15
min: 9, max: 19, Q1: 11, Q2: 14, Q3: 16
400
You select a card from a standard deck. Find the probability that the card is a 4 or an ace.
What is 0.154
400
Fifty-nine percent of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a professional baseball fan. Find the probability that the number who consider themselves baseball fans is at least eight.
What is 0.152
400
The lengths of Atlantic croaker fish are normally distributed, with a mean of 10 inches and a standard deviation2 inches. If a croaker is randomly selected, find the probability that the fish length is at less than 7 inches
What is 0.0668
400
You randomly select 16 coffee shops and measure the temperature of the coffee sold at each. The sample mean temperature is 162.0 degrees F with a sample standard deviation of 10.0 degrees F. Find the margin of error for a 95% confidence interval.
What is E = 5.3
500
Create a frequency table:
7, 39, 13, 9, 25, 8, 22, 0, 2, 30, 7, 35, 12, 15, 8, 6, 5, 29, 0, 11, 39, 16, 15. Use 5 classes
What i
500
A state's department of transportation plans to develop a new section of interstate highway and receives 16 bids for the project. The state plans to hire four of the bidding companies. How many different combinations of four companies can be selected from the 16 bidding companies?
What is 1820
500
Twenty eight percent of college students say they use credit cards because of the rewards program. You randomly select 10 college students and ask each to name the reason he or she uses credit cards. Find the probability that number of college students who say they use credit cards because of the rewards program is between two and five inclusive.
What is 0.783
500
The speeds of vehicles along a stretch of highway are normally distributed, with a mean of 67 miles per hour and a standard deviation of 4 miles per hour. Find speed of a car given that it has a z-score of 1.96
What is 74.84 mph
500
From a sample of 35 days in a recent year, the closing stock prices for Hasbro had a mean of $23.20 and a standard deviation of $4.34. Construct a 90% confidence interval for the population mean