STA301 Quiz 2 by VU Topper RM

There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?

A coin is tossed 4 times in succession. What is the probability that at least one head occurs?

What does the set comprising all possible outcomes of an experiment known as sample space.

From the following table; The value of F(x=3) will be:

When a fair die is rolled, then sample space consists of:

2 outcomes

16 outcomes 6 outcomes 36 outcomes

Positive correlation COEFFICIENT “r” will fall within the range: -1<r<0

-1<r<1

All

In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?

If one event is not affected by the outcome of the other event, the two events are said to be:

Independent

Dependent Mutually Exclusive Not Mutually Exclusive

P (A union B) is equal to: P(A) - P(B). P(A) + P(B).

P(A) + P(B)-P(A.B)

P(A) + P(B)+P(A  B)

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

A fair coin is tossed three times. What is the probability that at least one head appears?

If we roll a die then probability of getting a ‘2’ will be

Given P(A) = 0.4, P(B) = 0.5 and P(A⋃B)=0.9,then:?STA301

A and B are equally likely events

1. Question # 1 of 10

If Y=bX, then variance of Y is