time/distance/speed
Convert the following time
4:50am to 24-hour time
04:50
List two pieces of information that would be collected during the Australian Census.
- name, age, gender
- job, studying, income
- race, religion, marital status
- hours worked, people in the house
+ others approved by teacher
Which type of data is best displayed using Pie Graphs, Column graphs or dot plots?
Categorical Data
convert the following times:
1) 5:38pm to 24-hour time
2) 23:05 to 12 hour time
1) 17:38
2) 11:05pm
list three (3) rules the ABS and population follow to conduct the Census
- conducted every 5 years
- conducted by the ABS
- completed on the same night
- all people in the household answer
- online or paper copy
List two types of graphs that are suited to displaying numerical data.
- Line Graphs
- Histograms
- Stem and Leaf Plots
What is the formula for calculating speed?
speed = distance / time
The Tullawong SHS Maths department need to complete a report about the results of the year 11 essential maths student performance.
a) Identify the target population
b) Decide whether a census or a sample should be used to gather this information. Explain your reasoning.
a) All students in year 11 essential maths
b) Census, because using the results of all students in the year level would give the most accurate information to be used.
Refer to Graph 1 for 300 points.
a) Determine the price per MJ (cents) when 40 MJ of energy is used.
b) Determine the energy used (MJ) for the price per MJ (cents) of 2.2
a) 1.8 Price per MJ (cents)
b) 0 - 30 MJ energy used
Tyla completed a 320km road trip to Byron Bay in 3.5 hours.
a) Calculate her average speed to 2 decimal places.
b) Write your answer as whole kilometres.
a) 91.43km/h
b) 91km/h
Describe the fault involved in the process of collecting the following 2 samples;
1) Measuring a person's weight on scales that show 5kg when nothing is on the scales.
2) Asking for feedback about tuckshop food using the responses below;
A) Great B) Delicious C) Outstanding
1) using measuring equipment that doesn't work correctly - measurement error
2) only provided positive options for feedback - bias
refer to graph 2 - 400 points
a) Determine how many year 8 students studied French.
b)Determine how many students that studied Spanish were in year 10.
c)Calculate the percentage (rounded to the nearest whole number) of students that studied French who were in year 9.
a) 120 students
b) 215 students
c) (255/350) x 100 = 72.86% = 73%
Nedd ran a race at a speed of 40m/s for 5km.
a) convert 5km to m
b) Calculate how long it took Nedd to complete this race? (in minutes and seconds)
a) 5000m
b) 5000m / 40m/s = 125 seconds = 2 min 5 seconds
Identify any bias in the following question and re-write the question.
"Most of our clients enjoy the look and feel of our renovated gym over the old one, how do you feel?"
Bias - leading the respondent to agree with 'most of our clients'
re-write: How do you feel about the renovations to the gym?
a) Use the worksheet provided to construct a line graph
b) Due to health and safety regulations the museum is not permitted to open if it has more than 8000 visitors over 7 consecutive days. Would this museum be able to open on day 8? Explain why/why not.
a) graphed constructed correctly
b) The museum would NOT be able to open on day 8 as the total number of visitors over 7 consecutive days was 11,500. This is more than 8000.