Question

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1. A teacher would like to estimate the percentage of her students who play chess.

Which method should the teacher use to select the sample?

use a computer to randomly select 30 student IDs from all students

select every other student in her classes until she has selected a total of 30 students

select all students who are currently in the chess club

use a computer to randomly select 30 student IDs from all her students


2. An ice cream store owner randomly samples 50 customers each day on three separate days to give their opinion about which flavor should be the flavor of the month

Vanilla Chocolate Rocky Road Cheesecake Total
Day 1 13 12 11 14 50
Day 2 12 15 11 12 50
Day 3 15 7 8 20 50

Select from the drop-down menu to complete the statement using the information in the table.
Based on the results of the survey, if the ice cream store owner asks 2300 people, will most likely pick vanilla to be the flavor of the month.


3. Twenty words were randomly selected from a science fiction novel and a biography. The line plot shows the number of letters in each of the 20 words.

Which conclusion can be drawn from the data?

The median word length for both books is the same.

The biography has a less range of word length.

Science fiction novels have more words than biographies.

The words are generally much shorter in the science fiction novel than the biography.


4. The table shows the weekly rainfall, in inches, for two cities for ten weeks.

Which conclusion can be drawn from the data?

For the ten weeks, City A received less rainfall, on average, than City B

The range between the maximum and minimum values for City B is greater than the range between the maximum and minimum values for City A.

During the 10 wk period, the rainfall amount recorded most often for City B was 1 in.

The median for City A is less than the median for City B.


5. Twenty words were randomly selected from a science fiction novel and a biography. The line plot shows the number of letters in each of the 20 words.

Which conclusion can be drawn from the data?

The median word length for both books is the same.

The biography has a less range of word length.

Science fiction novels have more words than biographies.

The words are generally much shorter in the science fiction novel than the biography.

Answer 1

1 D.

2 Vanilla.

3 "The biography has a less range of word length."

4 "The median for City A is less than the median for City B."

5 "The words are generally much shorter in the science fiction novel than the biography."