markaylarowland8

20.08.2020 • 

Mathematics

A study conducted by researchers was designed "to determine if application of duct tape is as effective as cryotherapy in the treatment of common warts." The researchers randomly divided 62 patients into two groups. The 31 patients in group 1 had their warts treated by applying duct tape. The 31 patients in group 2 had their warts treated by cryotherapy. Once the treatments were complete, it was determined that 55% of the patients in group 1 and 39% of the patients in group 2 had complete resolution of their warts. The researchers concluded that duct tape is significantly more effective in treating warts than cryotherapy. Complete parts (a) through (d) below.

Ответ:

saskiat1155

07.01.2023

Mathematics

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Step-by-step explanation:

Recall that a probability mass function defined on a discrete random variable X is just a function that gives the probability that the random variable equals a certain value k

In this case we have the event  

“The computer will ask for a roll to the left when a roll to the right is appropriate” with a probability of 0.003.

Then we have 2 possible events, either the computer is right or not.

Since we have 4 computers in parallel, the situation could be modeled with a binomial distribution and the probability mass function

This gives the probability that k computers are wrong at the same time.

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