Question regarding the trichinosis
A biologist has found that 40% of all brown bears are infected with trichinosis. 10 brown bears are tested for trichinosis. What is the probability that less than 3 will have trichinosis? Please show all steps in solving.
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A selection of cereals was sampled and the number of calories was plotted against the number of grams of protein with the following results: Which of the following is NOT CORRECT?
The 24 children in the passive group had these counts of correct identifications:
Use normal approximation to estimate the probability of getting less than 45 girls in 100 births. Assume that boys and girls are equally likely.
Suppose that from the past experience a professor knows that the test score of a student taking his final examination is a random variable with mean 66 and standard deviation 11. How many students would have to take the examination to ensure, with
A bicycle factory runs two assembly lines, A and B. 97% of line A's products pass inspection and 89% of line B's products pass inspection. 40% of the factory's bikes come off assembly line B and the rest come off line A. Find the probability that
The worker at a carnival game claims that he can communicate with a small magic rock and to prove it he tells you to hide it in your hand behind your back and he will identify the hand holding the rock. Being a wise student of statistics, you deci
Being a wise student of statistics, you decide to stand back and observe the outcome of the next ten games before deciding whether to pay your three dollars to play the game. You have just conducted an informal hypothesis test. State the null and
One concern about the depletion of the ozone layer is that the increase in UV light will decrease crop yields. An experiment was conducted in a green house where soybean plants were exposed to varying levels of UV levels
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