CAN ANYONE ON HERE SOLVE THIS LOL PLS HELP????

Question

lgbasallote · Answer

i guess i can solve that "lol"..where's this lol you're talking about?

anonymous · Answer

P(sand | positive) = 0.405
 







P(sand | positive) = 0.209
 







P(sand | positive) = 0.385
 







P(sand | positive) = 0.26

anonymous · Answer

SORRY COMPUTER IS CRAZYYY LOL

anonymous · Answer

An water well is to be drilled in the desert where the soil is either rock, clay or sand. The probability of rock P(R) = 0.53. The clay probability is P(C) = 0.21. The sand probability is P(S) = 0.26. It if it rock, a geological test gives a positive result with 35% accuracy. If it is clay, this test gives a positive result with 48% accuracy. The test gives a 75% accuracy for sand. Given the test is positive, what is the probability that soil is rock, P(sand | positive)?

lgbasallote · Answer

ugh probabilities =_= sorry i hate those

anonymous · Answer

Omg i am doomed lol

anonymous · Answer

any idea at all?