Suzan Koh
Asked 9 years ago

SG chevron_right Secondary 1 chevron_right Number and Algebra

Replies 4
Maggie Lukes

.05 x monthly salary = 80, monthly salary = 80/.05 = $1600. Another way to look at it is to think there are 20 5% in the total, so his monthly salary is 20x80.

6 years ago
Maggie Lukes

b) 120/1600 = .075 = 7.5%

6 years ago
Xavier Sng

Alternately for (b), $120/$80 x 5% = 7.5%

6 years ago
Suzan Koh

Thank u

6 years ago

Suzan Koh
Asked 9 years ago

SG chevron_right Secondary 2 chevron_right Statistics and Probability

Replies 2
Maggie Lukes

Good start. You've put the measurements in order from least to greatest. You've drawn a line in the middle, but since there are a even number of measurements, there is not an obvious median. The accepted method is to find the mean of the two middle numbers which is (64.5+66.1)/2

6 years ago
Suzan Koh

Thank u

6 years ago

Suzan Koh
Asked 9 years ago

SG chevron_right Secondary 2 chevron_right Statistics and Probability

Replies 2
Maggie Lukes

Mean = sum of scores/26 = [3(1)+5(2)+6(3)+4(4)+4(5)+4(6)]/26

6 years ago
Suzan Koh

Thank u

6 years ago

Suzan Koh
Asked 9 years ago

SG chevron_right Secondary 2 chevron_right Statistics and Probability

Pls help

Replies 1
Zhong Shu Hao

These are not PSLE questions......

6 years ago

Geraldine Koh
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Number and Algebra

Hi, can someone please help to explain how to solve this question with working? Tks in adv!

Replies 3
Mayuree Thongpan

6 years ago
Felicia Teo

6 years ago
Izam Marwasi

6 years ago

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