The scatter diagram shows the results of a group of students in their German Oral and written exams.
1001
X
Maryam got a mark of 70% in the
Oral exam.
90
80
х
* X
70
Using the scatter graph, find an estima
for Maryam's mark in the Written exam.
XX
60
Written (%)
xx
50
%
40
X
X
X
30
20
10
0
10
20 30 40 50 60 70 80 90 100
Oral (%)
Total marks: 2​

65%

Step-by-step explanation:

the answer is (4,3)

since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%