What is the difference between a Census and Sample?
Census is everyone in the population.
Sample is a portion of the population.
What is wrong with this graph?
The percentages don't add to 100%
Agree or Disagree: Women eat more fruits and vegetables than Men
Agree
How many more times likely is it to rain on Thursday than on Sunday?
4 times more likely
20/5=4
Name one similarity or difference in this graph
Similarity: Trend is the same (Steady to sharp decline)
Difference: 2022 have about 200 to 400 more homeschooled students from 6 to 14.
What is this sampling method call?
Simple Random
What is the trend in this graph?
Increasing Trend
Is there a relationship between price and performance?
Yes: Their is a positive relationship.
No: The relationship is due to the type of washer.
Is a student twice as likely to get a Tertiary Level Qualification than a Postgraduate Qualification?
No. It is only 1.9 times more likely
19/10=1.9
What is a difference in this graph?
- Quarry increases at a faster rate from 2014 onwards.
- In 2014, Quarry has a larger increase in penguins.
What is the probability that a randomly selected full licenced driver has no car?
8/85=0.09 (2dp)
Why is this infographic misleading?
The body sizes aren't proportionate
Give two reasons why men are more likely to have a drivers licence in NZ
1. There are more men with a licence.
2. There are less men that don't have a licence
How many times cheaper are Christchurch houses compared to Tauranga?
0.70 (2dp) times cheaper
751901/1074336=0.70 (2dp)
What is a similarity from this graph?
What is the expected number of golds USA will win from their next 200 medals?
76 or 77
76.64 (2dp)
What is the pattern of this graph?
There is none
Give one reason why you can agree with the statement: "Vegetables are the most expensive they've ever been"
If you add a trend line, it is increasing.
Using the highest and lowest values. How many times more likely are you to pass your driving test?
1.69 (2dp) times more likely.
81/48=1.69 (2dp)
What is a similarity in this graph?
- The trend is the same
- There is a large peak in 2022
- Premium is always the most expensive and diesel is the cheapest
Name one disadvantage of using a Pie Graph?
- Not so useful when displaying more than 5 pieces of data.
- Not great at showing small portions of data.
- Doesn't clearly show order of numeric data.
What is being talked about in this page?
Variation
This graph shows the 13 most popular girl names of the 20th century.
Name one reason why you can't be sure Mary is the most popular name of all babies.
The graph doesn't include boy names.
How many more times are you likely to contract Cryptosporidiosis in September than the average of all the other months?
5.72 times more likely.
(42+36+36+21+54+44+38+94)/8=45.625
261/45.625=5.72 (2dp)
What is a similarity in these graphs?
Individually, Male and Female numbers are very similar at every age group for each graph