Chapter 12: Statistics and Probability
If G is a cyclic group, prove that G/N is cyclic, where N is any subgroup of G.
What formula is called Mitternachtsformel (midnight formula) in German?
Choose the word or term that best completes the sentence.
The arrangement in which order is important is called a (combination, permutation).
Determine the probability of each event if you randomly select a cube from a bag containing 6 red cubes, 4 yellow cubes, 3 blue cubes, and 1 green cube.
Identify each sample, and suggest a population from which it was selected. Then classify the type of data collection used.
TOYS A toy company invites 50 children in to test a new toy and records the reactions.
Which measure of central tendency best represents the data? Justify your answer. Then find the measure.
Archment High School is recycling newspapers as a fundraiser to buy some benches for the courtyard. The newspapers are gathered into 5-inch bundles. Ms. Sato counted the bundles received each Friday for the first quarter of the school year: 15,12,14,15,18,15,13,14,13,12.
What are the excluded values of the variable in the expression ?
Identify each sample, and determine a population from which it was selected. Then classify the type of data collection used.
A record company wants to test five designs for an album cover. They randomly invite ten teens from a local high school to view the album covers.
Identify each sample as biased or unbiased. Explain your reasoning.
A magazine publisher asks every tenth person at a fitness expo what magazines they have in their household.