When tossed, head shows up 4 times more considera con that is not fair. (4 marks) often than tails. assign valid probabilities to this experiment 18. if p(e)-0.25, p(f)-0.3 and p(enf)-0. determine the probability of p(euf). [4 marks)

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

What is the y intercept of f(x)=(1/2)^x?

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.