Part 1: Data Presentation Use the data in the table below to complete the graph provided. Number of Bubbles (per min) Depth (in metres) Plant A Plant B 2 29 5 36 21 10 27 45 16 40 32 25 50 20 30 34 10 Answer the following questions based on the graph above you just completed. 1. What is the independent variable? 20 _________________________________________________________________________________ 2. Why is this the independent variable? _________________________________________________________________________________ 3. What is the dependent variable? _________________________________________________________________________________ 4. Why is this the dependent variable? _________________________________________________________________________________ 5. Use one or more complete sentences to state a conclusion about the data in the graph. _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________

The distance between the light source (lamp) and the apparatus (with a waterplant) was changed at regular intervals, recording the number of bubblesreleased by the water plant at each distance.The results are shown in the table below.Distance betweenlamp and plant(mm)40 80 120 160 200 240 280 320 360Bubbles formedper minute 32 30 28 25 15 10 5 3 0Question 2.3.1 [4 marks]For the above investigation, state:(a) The dependent variable(b) How the dependent variable was measured(c) The independent variable(d) How the independent variable was variedQuestion 2.3.2 [1 mark]State the function of sodium bicarbonate in this investigation.Question 2.3.3 [1 mark]State ONE way in which the reliability of the investigation could be increased.Question 2.3.4 [8 marks]Plot a line graph to represent the data obtained during this investigation.[14 marks]12

A set of data is summarized by the stem and leaf plot below. Stem Leaf 1 1 3 5 6 6 7 2 1 1 2 3 3 4 8 9 3 0 0 0 0 2 3 6 7 7 8 8 8 4 1 1 1 2 2 3 3 4 5 6 7 7 7 7 There are values in the data set which are greater than or equal to 20 and less than or equal to 29. There are values in the data set which are greater than or equal to 10 and less than or equal to 19. There are values in the data set which are greater than or equal to 40 and less than or equal to 49.

Use the graph to answer the questions.1. Which variable is considered the cause in the cause-and-effect relationship? Blank 1 Question 52. Which variable will be the effect in the cause-and-effect relationship? Blank 2 Question 53. Which variable is the independent variable? Blank 3 Question 54. Which variable is the dependent variable? Blank 4 Question 5

A bubble chart provides a method  of plotting three variables in two dimensions.Group of answer choicesTrueFalse

Banana Saplings are planted in a garden.Different varieties of saplings are planted.N saplings are planted in M rows.Read the N and M values .Read the cost of each saplings.Print the cost of saplings as two dimensional array.Sample Input3 4 (Row and Column value)12 10 13 14 10 8 7 12 9 8 10 12 Sample Output12 10 13 14 10 8 7 12 9 8 10 12