NEW
Font size
Worksheets1st year Statistics
Total questions: 46
Worksheet time: 3hrs 26mins
In which month were you born?
Categorical
Numerical
What is your favorite subject in school?
Categorical
Numerical
How old are you?
Categorical
Numerical
Based on the graph,how many more sunny days than rainy days did this city have during the months of April, May, and June?
For how many weeks was the data collected?
48
50
52
54
How many times did Mary score below a 60 on her tests?
4
5
3
0
The Student Council asked every tenth student in the lunch line how they preferred to be contacted with school news. The results are shown in the table. Is this an unbiased sample? If yes, suppose there are 684 students at the school. How many can be expected to prefer E-mail?
No, it's a biased sample
432
304
16
A hospital wants to open a gym. They ask the night-shift ER staff when they would use the gym.
Biased
Unbiased
To determine the number of umbrellas the average household in the United States owns, a survey of 100 randomly selected households in Arizona is conducted. Of the households, 24 said that they own 3 or more umbrellas. The researcher concluded that 24% of the households in the United States own 3 or more umbrellas. Is the this a valid conclusion? Justify your answer.
Valid. The sample is biased.
Not valid. The sample is biased.
Valid. The sample is unbiased.
Not valid. The sample is unbiased.
Is this an example of a population or a sample?
The number of pets in all households in a city.
population
sample
Is this an example of a population or a sample?
The number of pets in one household in a city.
population
sample
Is this sample biased or unbiased?
A sample of 50 students who currently have an A in math.
Biased
Unbiased
Look at the bar graph.
How many dogs do the students have?
7
6
5
Do they have more fish or cats?
Fish
Cats
Use the data in the graph to make an inference.
If Hector has to close his shop either Thursday, Friday, Saturday, or Sunday, what day should he close it?
Friday
Sunday
Thursday
Saturday
How many students take the bus to school?
35
20
10
15
Write the equivalent decimal of 6%
60.0
6.0
0.6
0.06
Write the equivalent percent for 0.055
5.5%
0.055%
0.55%
55%
How many drivers were interviewed regarding their preferred vehicle?
156
84
240
180
What percent of the drivers interviewed are female?
180%
75%
0.75%
180%
What was the most popular type of film?
Action
Comedy
Supernatural
Animated
