Weekly rainfall data was collected from thirty different locations across the south coast area. The weekly rainfall(in mm) at each site was:

The monthly rainfall for Adelaide and Sydney was recorded over the course of a year.Adelaide was found to have a mean monthly rainfall of 45.645.6 mm with a range of 6767 mm, while Sydney had a mean of 86.886.8 mm with a range of 5757 mm.Which city has more consistent rainfall throughout the year?

“What is the predicted rainfall my garden will receive this Spring?” will be the question investigated.Below is the statistics for rainfall for each month of the years of 2014-2017. Use the data to explore therelationship between month and rainfall. This data was collected from the Perth Metro Weather station.Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec2014 0.2 0.0 7.4 24.6 152.6 93.6 151.2 107.0 77.0 37.0 23.8 0.02015 18.6 23.4 15.6 54.0 83.8 100.4 102.4 113.0 52.0 20.6 20.4 13.62016 15.2 0.6 16.8 68.2 112.0 109.4 139.6 123.2 68.8 37.4 14.4 10.22017 45.4 137.2 23.6 0.0 70.8 88.0 172.6 151.6 77.4 42.0 4.8 40.6Source: bom.gov.au,http://www.bom.gov.au/jsp/ncc/cdio/weatherData/av?p_nccObsCode=139&p_display_type=dataFile&p_startYear=&p_c=&p_stn_num=009225STATISTICAL INVESTIGATION PROCESS INVESTIGATION QUESTIONHow can I predict the rainfall at my house this September? DATA COLLECTION [1 mark]Explain why the data given in the table above is secondary data.Why would I expect the data collected from BOM to be accurate?Is there sufficient data for accurately answering the investigation question?Give 3 ways the selection of data be improved? DATA REPRESENTATION [1 mark]Represent this data using a suitable graph. Label the graph appropriately.

The quantity of rainfall received on five consecutive days during the monsoon season of 2023 at six different weather stations along the Western Ghats was measured. The table given below shows the partial information about the average of the total rainfall (in cm) received for each pair of weather stations during these five days.Question No 40.What was the total rainfall (in cm) received by all the six weather stations on day 5?

1. The daily rainfall for each day of a weekin a certain city is given in millimetres.Find the average rainfall during the week.9, 11, 8, 20, 10, 16, 12

The table shows the recordings of rainfall, in centimetres, on seven successive days.Mon Tues Wed Thurs Fri Sat Sun1.25 1.05 0.15 0.45 0.85 0.65 0.4What was the total rainfall for the whole week?