An urn contains forty red chips and sixty white chips. Six chips are drawn out and discarded, and a sev- enth chip is drawn. What is the probability that the sev- enth chip is red

The probability that the 7th chip is red = 0.4

Step-by-step explanation:

Given that;

an urn contains 40 red chips and 60 white chips

6 chips are randomly drawn and discarded and a 7th chip is drawn,

lets consider E as the the event that represent the 7th chip is red.

so probability that 7th chip is red will be;

P(E) = ⁶∑ ×  /  

= × + ×  + ......+  /

= [ 2002554400 + ..... + 130504920 ] /

= 44821170240 / (1192052400)(94)

= 44821170240 / 112052925600

= 0.4

Therefore the probability that  the 7th chip is red = 0.4

555.99.

step-by-step explanation:

hope this