# What is the expected value of This Variable statistics homework help

1. Read the webpage, https://en.wikipedia.org/wiki/Binomial_distribution , down to the section, Mode and Median. Read thoroughly the example about the biased coin that comes up heads with probability of 0.3. This variable can be described as, X~Bi (n=6, p=0.3). Use this example to answer the following questions.

a. What is the expected value of this variable?

b. What is the expected number of heads if this coin is tossed 6 times? Same answer as in part 2.a. but in different words.

c. What is the probability that the number of heads out of 6 tosses of this unfair coin is less than 2?

d. What is the probability that the number of heads out of 6 tosses of this unfair coin is more than 2?

e. What is the probability that the number of heads out of 6 tosses of this unfair coin is at least 2?

f. What is the probability that the number of heads out of 6 tosses of this unfair coin is at most 2?