Examining Samples Worksheet printable pdf download

Examining Samples Worksheet

Name:

Examining Samples

Solve each problem.

1) An animal control employee wanted to estimate how many people owned cats and how many owned dogs. To do

this he polled the first few houses in several neighborhoods. His findings are shown below:

Sample #

Dog

51 48 52 48 50 48 51

Cat

48 51 52 48 49 49 52

Based on the information presented what can you infer about which type of pets there are?

Because of the very small discrepancy in the quantities it is unlikely any deduction can

be made about how many cats or dogs are owned.

2) An ad agency was trying to determine if customers liked blue, green or red packaging better. To do this they took a

sample of customers and polled them. The results are shown below:

Sample #

Red

Green

Blue

Based on the information presented can you infer anything about which color is liked the best?

Based on the information presented and the small samples gathered it is impossible to

make any meaningful assumptions.

3) For a canned food drive there were 3 types of cans vegetables donated: peas, carrots and green beans. To estimate

how many of each type were donated, you pull out a sample. The results are shown below:

Sample #

peas

44 44 42 41 44 41 40

carrots

52 50 50 48 50 51 49

green beans

36 30 33 30 33 35 31

Based on the information presented can you infer anything about the types of cans donated?

Based on the information presented there will be more carrots donated than peas or

green beans.

1-3

67 33 0

Math

Examining Samples Worksheet