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2 answers:
Take a look at the tree diagram. The first branching shows the probabilities of there being oil, or not being oil.
Then, for each case we consider the probabilities of the kit being accurate or not.
we are interested in the branch Oil---Kit accurate---
Since P(Oil)=0.45, and P(Kit accurate)=0.8, the probability of there being oil and the Kit showing it correctly is:
0.45*0.8=0.36.
Answer: C) 0.36
Then, for each case we consider the probabilities of the kit being accurate or not.
we are interested in the branch Oil---Kit accurate---
Since P(Oil)=0.45, and P(Kit accurate)=0.8, the probability of there being oil and the Kit showing it correctly is:
0.45*0.8=0.36.
Answer: C) 0.36
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Answer:
The computer can perform 1051050 calculations in 10 seconds.
Step-by-step explanation:
1. Put the quantity of calculations the computer can perform in 1 second:
2. Multiply the quantity of calculations by 10 seconds:
Note that the units of seconds are cancelled as they appear on the numerator and the denominator, and the final response unit is given in calculations number.
The computer can perform 1051050 calculations in 10 seconds.