Adrawer contains 6 white socks and 10 black socks. if 2 socks are chosen at random, what is the probability that they will have the same color? ! i have the shsat exam tomorrow and i need to know how to do this.

there are 16 socks in the drawer

probablility of 2 white socks  or  2 black socks

6/16 *5/15  + 10/16*9/15   no replacement on socks

30/240 + 90/240

120/240

1/2

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.