Question

Two friends, Helen and Harriet, have a coin. Helen spent all day flipping the coin thousands of times, and observed that it turned up heads 60% of the time. So Helen assigns a probability of 0.6 to the event that a head turns up.

Harriet, who is unaware of Helen's flipping experiment, reasons that the coin has two sides, each side being equally likely to show up. So Harriet assigns a probability of 0.5 to the event that a head shows up.

a)The process that demonstrated relative frequency probability was:

reasoning that the outcomes of the coin flip are all equally likely
flipping the coin many times and observing the outcomes
both reasoning that all outcomes are equally likely and observing the coin flips made

b)A weakness with the probability assigned by Helen is that:

it must be wrong, the probability must be 1/6
it is an estimate
probability has nothing to do with how often an event is seen to occur

Student	Probability
Karen	0
Linda	0.5
Miranda	1
Natalie	2

Four students attempt to describe the likelihood of an event. They all assign a probability to this event. The table to the right shows each student together with the probability that they have assigned.

Based only on this information, the student that believes that the event is possible, but not certain, is:

	Linda
	Natalie
	Miranda
	Karen

Answer 1

Linda believes that the event is possible but not certain ....

Because of following reasons-

A pssible event have a probability greater than 0 so karen is not the student that believes on that statement.

Natalie finds a probability greater than 1 so she is not right because prob. lie between 0 and 1.

Certain event have a prob. of 1 but not certain event have prob. Less than 1 . So mirinda is also not thst student who believes on that statement..

That's why linda is the one..