Will someone please calculate the expected frequencies for both of these problem

Question

Will someone please calculate the expected frequencies for both of these problems below and show all of the necessary work done in order to arrive at the answer? I have no idea how to do them. The answers are given in green. Thank you.

rart B: Use Excel to answer the following two (2) questions. Print the output and attach to Part B of the exam. (10 points each) 1. In 120 rols of S dice, the following results were obtained. What are the expected frequencies? (10 points) Number of Sixes Observed Frequency Expected Frequency 5 12 20 39 35 2 A study in Southern Brazil assessed the abundance of terrestrial flatworms by surveying 100 plots. The following table shows the observed number of flatworms per plot. Calculate the expected frequency of this data set. (10 points) 2. Observed Frequency Expected Frequency Number of flatworms per plot 52 ( 0 12 2 3 e): T4, W12, ws, R9, R a graphs to this

Explanation / Answer

(1)

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Probability of success (getting a 6) in one trial = 1/6

Probability of not getting a success in one trial = 5/6

Number of trials = 120

Ways of choosing a die for success = C(5, x) where x = Number of successes

x f (Obs) f(Exp) 5 6 0.015432099 4 8 0.385802469 3 12 3.858024691 2 20 19.29012346 1 39 48.22530864 0 35 48.22530864

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