Multiple Samples Answers

The owner of a local restaurant surveyed her staff on their preference of uniform color. The results are displayed in the table below. Which pair of samples is most representative of the preference of all the staff?Uniform Color SurveySample 1Sample 2Sample 3Beige3Beige12Beige7Blue7Blue5Blue15Black10Black3Black18

The table displays the number of butterflies collected in a sample over three years. What inferences can be made from the samples taken on butterfly populations? Select three choices.Louden County Butterfly CountYear 1Year 2Year 3Zebra Swallowtail21Zebra Swallowtail10Zebra Swallowtail10Viceroy3Viceroy4Viceroy3Painted Lady2Painted Lady0Painted Lady16Monarch82Monarch52Monarch57

Mr. McElroy enjoys listening to his MP3 player, which has 2,000 songs in five different genres of music. He took a sample of the number of each type of song it played on two different one-hour sessions when it was set to play a random mix. The results are displayed in the table below. What is a good prediction for the number of rock songs Mr. McElroy has on his MP3 player?Listening Samples from Mr. McElroy’s MP3 PlayerSample 1Sample 2Country5Country3Pop4Pop3Classical3Classical5Jazz2Jazz4Rock6Rock5

The table below shows the population of different duck species at a local pond. Which term best describes the total number of Mallards in the pond?Duck Pond SamplesSample 1Sample 2Mallard13Mallard12Wood Duck4Wood Duck2Green Wing Teal6Green Wing Teal6American Widgeon2American Widgeon5

Abigail wants to determine which time of day people prefer to exercise. She will collect three samples. Which statements describe good methods for collecting the samples? Select three options.

Ducks Unlimited helps sample duck species across the United States. Samples from one particular location for the last two years are shown below. Which duck population seemed to hold steady?Duck Pond Samples20102011Mallard58Mallard73Wood Duck11Wood Duck12Green Wing Teal19Green Wing Teal34American Widgeon24American Widgeon29

DeWayne wants to find out what career his fellow middle school students would like to pursue. He plans to collect three samples. Which statements describe good methods for collecting the samples? Select two options..

A sample was taken of dogs at a local dog park on two random days. The counts are displayed in the table below. If there are estimated to be 50 dogs at the park at any given time, which proportion could be used to find the average number of shepherd mixes at the park at any given time?Dog Park SampleSample 1Sample 2Labrador Retriever4Labrador Retriever5Shepherd Mix7Shepherd Mix9Chihuahua3Chihuahua5Poodle1Poodle2Australian Cattle Dog2Australian Cattle Dog4

Louden County Wildlife Conservancy counts butterflies each year. Data over the last three years regarding four types of butterflies are shown below. What inference can be made about the butterflies in Louden County from the samples?Louden County Butterfly Count200920102011Meadow Fritillary5Meadow Fritillary34Meadow Fritillary14Variegated Fritillary7Variegated Fritillary95Variegated Fritillary63Zebra Swallowtail33Zebra Swallowtail21Zebra Swallowtail10Eastern-Tailed Blue242Eastern-Tailed Blue168Eastern-Tailed Blue170

Two samples were taken of fish caught on Small Lake and are shown in the table below. It is estimated that the Small Lake fish population is roughly 1,000 fish. What is the average number of brown trout in the lake?Small Lake Fish SampleSample 1Sample 2Rainbow Trout15Rainbow Trout11Brown Trout3Brown Trout1Largemouth Bass9Largemouth Bass11

Student representatives surveyed their classmates on their preference of a school mascot for a new school. The results are shown in the table below. Which pair of samples seems most representative of student preference?Mascot SurveySample 1Sample 2Sample 3Artichokes15Artichokes0Artichokes3Bears28Bears53Bears48Citizens17Citizens7Citizens9

Braden wants to compare the types of ducks in two nearby ponds. He collected two samples using the following criteria. For sample 1, he counted the types of ducks on Walden Pond from 6 A.M. to 9 A.M. For sample 2, he counted the number of Mallard ducks that were on Brook’s Pond from 12 P.M. to 3 P.M. What would improve Braden’s plan? Select three options.

A restaurant serves three types of omelettes. Surveys were taken of the last two days of orders and are displayed in the table below. Approximately 200 omelettes are served each day. What is the average number of ham and cheese omelettes served each day?Omelette SurveySample 1Sample 2Ham and Cheese7Ham and Cheese11Mexican 4Mexican2Vegetarian1Vegetarian5

Eldrick manages wildlife samples for Ducks Unlimited. Two samples of duck populations at a migratory site are shown in the table below. Which statement about the samples is true?Duck Pond SamplesSample 1Sample 2Mallard21Mallard8Wood Duck4Wood Duck17Green Wing Teal9Green Wing Teal15American Widgeon6American Widgeon0