Mathematics, 30.11.2021 02:40, Dekyraaa
1. The two-way table shows the age and sex of a sample of 50 pupils in a school.
11 years old
12 years old
3
13 years old
6
16 years old
4
Boys
4
14 years old
2
6
8
15 years old
5
4
9
Total
24
26
50
Girls
3
6
2
6
5
8
Total
9
10
a) How many pupils are aged 13 years or less? 22
b) What percentage of the pupils in the table are 16?
c) A pupil from the table is selected at random. What is the probability that the pupil will be 14 years
of age? Give your answer as a fraction in its lowest form.
Answers: 2
Mathematics, 22.06.2019 01:00, lilblackbird4
X^2/100+y^2/25=1 the y-intercepts are at: a) (-10,0) and (10,0) b) (0,10) and (0,5) c) (0,-5) and (0,5)
Answers: 1
Mathematics, 22.06.2019 01:10, ceeciliaaa13
|y + 2| > 6 {y|y < -8 or y > 4} {y|y < -6 or y > 6} {y|y < -4 or y > 4}
Answers: 2
1. The two-way table shows the age and sex of a sample of 50 pupils in a school.
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