The scatter diagram shows the results of a group of students in their German Oral and Written exams.
100T
Maryam got a mark of 70% in the
Oral exam.
90
80
x x
X
70
Using the scatter graph, find an estimate
for Maryam's mark in the Written exam.
60
Written (%)
X
50
%
40
X
x
30
20
10
O
10
20
30
40
50
60 70
80 90 100
Oral (%)
Total marks: 2

3. find the radius of circle p.4. find y.

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.