AC Lim's answer to Vicklaus Ng's Primary 6 Maths Data Analysis Singapore question.

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AC Lim
Ac Lim's answer
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Hope this explanation helps
Vicklaus Ng
Vicklaus Ng
3 years ago
Hi
May I know how to derive answer for Fig 50?
AC Lim
AC Lim
3 years ago
Refer to 1st answer.
Figure 50, total dots:
1+2+3+4+...... + 47+48+49+50

We can use F (F+1) /2
50 x 51/2