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ellamai16
30.11.2020 •
Mathematics
The graph shows f(x) =2(x - 3)^2 -1
a) Evaluate f(0).
b) What does f (0) represent on the graph of f ?
c) If f (x) =6, determine possible values of x.
d) Does f (3) =4 for this function? Explai
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Ответ:
Hence, Stacy will spin 6, 8.33 times out of her n = 50 attempts.
Step-by-step explanation:
Let us consider a success to get a 6. In this case, note that the probability of having a 6 in one spin is 1/6. We can consider the number of 6's in 50 spins to be a binomial random variable. Then, let X to be the number of trials we get a 6 out of 50 trials. Then, we have the following model.
We will estimate the number of times that she spins a 6 as the expected value of this random variable.
Recall that if we have X as a binomial random variable of n trials with a probability of success of p, then it's expected value is np.
Then , in this case, with n=50 and p=1/6 we expect to have number of times of having a 6, which is 8.33.