Answer:
Below.
Step-by-step explanation:
I've drawn the answers to (c) and (g) in the attached picture.
First mark the radar point and draw the N line vertically up from this point.
The bearing is the angle, drawn clockwise, from The North (N) line on the radar point. The lines drawn are 5 and 6.5 cms long to indicate the 5 and 6.5 miles.
I have estimated the angles. To draw them accurately you'll need a protractor.
The question is incomplete. Here is the complete question.
Raoul measured the ehight of 12 different plants in his garden in April. He measured them again in June.
April Heights (in inches) 12 15 23 11 42 45 44 39 12 19 20 12
June Heights (in inches) 45 45 40 43 11 14 12 13 41 40 45 41
What is the difference between the mean height in April and the mean height in June?
Answer: The difference between means is 8.0
Step-by-step explanation: <u>Mean</u> is the average of a set of numbers.
It is calculated as:
where
x is the numbers in the set
n is how many numbers are there in the set
For heights in April, the mean is:
μ₁ = 24.5
For heights in June, the mean os:
μ₂ = 32.5
The difference between means:
μ₂ - μ₁ = 32.5 - 24.5 = 8.0
The difference between the mean height in April and in June is 8.0 inches.