(1) The table shows the number of children per family in a community. No. of
0
1
2
3
4
5
children
No. of
3
5
7
4.
3
2
families
Find the (i) mode (ii) third quartile (iii} If a pie chart were to be drawn for the data,
what would be the sectorial angle representing families with one child.
(2) The graph of the equation Y = AX? + Bx + C passed through the point (0,0), (1,4)
and (2,10) Find the
(i) Value of C.
(ii) Values of A and B.
(iii) Co-ordinates of the other points where the graph cuts the x-axis.

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?